diff --git a/Makefile b/Makefile
index a958bce..cebec4f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,37 +1,76 @@
-# VideoTools Makefile
-# Cross-platform installer for Linux and Windows (Git Bash/WSL)
+# root/Makefile
+# Cross-platform installer for VideoTools (Linux / Windows via Git Bash or WSL)
 
 PREFIX ?= /usr/local
 INSTALL_DIR = $(PREFIX)/bin
 DOC_DIR = $(PREFIX)/share/doc/videotools
-
 SCRIPT = video-tools.sh
 DOCS = docs
+VERSION_FILE = VERSION
 
-install:
+# ------------------------
+# Installation
+# ------------------------
+
+install: verify
 	@echo "Installing VideoTools..."
-	mkdir -p "$(INSTALL_DIR)"
-	cp "$(SCRIPT)" "$(INSTALL_DIR)/video-tools"
-	chmod +x "$(INSTALL_DIR)/video-tools"
-	@echo "Copied script to $(INSTALL_DIR)/video-tools"
+	@mkdir -p "$(INSTALL_DIR)"
+	@install -m 755 "$(SCRIPT)" "$(INSTALL_DIR)/video-tools"
+	@echo "✔ Installed script to $(INSTALL_DIR)/video-tools"
 
-	mkdir -p "$(DOC_DIR)"
-	cp -r "$(DOCS)"/* "$(DOC_DIR)/"
-	@echo "Documentation installed to $(DOC_DIR)"
+	@mkdir -p "$(DOC_DIR)"
+	@cp -r "$(DOCS)"/* "$(DOC_DIR)/"
+	@echo "✔ Installed documentation to $(DOC_DIR)"
+
+	@if [ -f "$(VERSION_FILE)" ]; then \
+		VERSION=$$(cat $(VERSION_FILE)); \
+		echo "✔ VideoTools v$$VERSION installed successfully."; \
+	else \
+		echo "⚠ Version file not found. Install completed without version info."; \
+	fi
+	@echo ""
+
+# ------------------------
+# Uninstall
+# ------------------------
 
 uninstall:
 	@echo "Removing VideoTools..."
-	rm -f "$(INSTALL_DIR)/video-tools"
-	rm -rf "$(DOC_DIR)"
-	@echo "VideoTools uninstalled."
+	@rm -f "$(INSTALL_DIR)/video-tools"
+	@rm -rf "$(DOC_DIR)"
+	@echo "✔ VideoTools uninstalled."
+
+# ------------------------
+# Verification
+# ------------------------
+
+verify:
+	@echo "Checking environment..."
+	@if ! command -v ffmpeg >/dev/null 2>&1; then \
+		echo "✖ FFmpeg not found. Please install FFmpeg before continuing."; \
+		exit 1; \
+	else \
+		echo "✔ FFmpeg found."; \
+	fi
+	@echo "✔ Environment OK."
+	@echo ""
+
+# ------------------------
+# Documentation
+# ------------------------
 
 docs:
-	@echo "Opening documentation..."
-	@ls -1 $(DOCS)
+	@echo "Available documentation files:"
+	@ls -1 "$(DOCS)"
+
+# ------------------------
+# Help
+# ------------------------
 
 help:
 	@echo "Available targets:"
-	@echo "  make install      Install the toolkit system-wide"
-	@echo "  make uninstall    Remove the toolkit"
-	@echo "  make docs         List documentation files"
-	@echo "  make help         Show this message"
+	@echo "  make install       Install the toolkit system-wide"
+	@echo "  make uninstall     Remove the toolkit"
+	@echo "  make verify        Check if FFmpeg and environment are ready"
+	@echo "  make docs          List documentation files"
+	@echo "  make help          Show this message"
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..17e51c3
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+0.1.1
diff --git a/docs/CLI_Functions.md b/docs/CLI_Functions.md
index a9ee50a..02268a0 100644
--- a/docs/CLI_Functions.md
+++ b/docs/CLI_Functions.md
@@ -1,4 +1,5 @@
-# CLI Function Reference
+# docs/CLI_Functions.md
+# CLI Function Reference (v0.1.0)
 
 This document describes the available commands in `video-tools.sh`.  
 Each command can be run from any terminal once the tool is installed.
@@ -12,7 +13,7 @@ Each command can be run from any terminal once the tool is installed.
 | `convert-single` | `video-tools convert-single <input> <output.mp4>` | Converts a single video to MP4. |
 | `convert-multiple` | `video-tools convert-multiple <input1> <input2> ... <output.mp4>` | Combines multiple video files into one MP4. |
 
-All outputs are saved in your default `~/Videos` folder.
+All outputs are saved in your default `~/Videos` folder, unless overridden in `config/config.json`.
 
 ---
 
@@ -21,7 +22,7 @@ All outputs are saved in your default `~/Videos` folder.
 ### 1. convert-single
 
 **Purpose**  
-Convert a single input video file into an MP4 with modern compression and audio standards.
+Convert a single input video file into an MP4 using modern compression and audio standards.
 
 **Usage**
 ```bash
@@ -41,15 +42,16 @@ video-tools convert-single \
 ```
 
 **Behavior**
-- Converts older formats (AVI, MPG, MOV, MKV, etc.) into MP4.
-- Ensures output uses the H.264 codec (libx264) and AAC audio.
-- Rebuilds timestamps to avoid sync issues.
-- Adds `+faststart` flag for quicker playback when streamed or loaded in players.
+- Converts older formats (AVI, MPG, MOV, MKV, etc.) into MP4.  
+- Uses H.264 (`libx264`) for video and AAC for audio.  
+- Rebuilds timestamps with `-fflags +genpts` to prevent sync issues.  
+- Adds `-movflags +faststart` to improve playback and streaming performance.  
+- Displays detailed FFmpeg progress and conversion status.
 
-**When to use**
-- When you want to upgrade old videos to a more efficient format.
-- When a single video won’t play on mobile or modern devices.
-- To reduce file size without losing visible quality.
+**When to Use**
+- To modernize older video files.  
+- When a video fails to play properly on mobile or modern devices.  
+- To reduce file size while retaining visual quality.
 
 ---
 
@@ -78,14 +80,15 @@ video-tools convert-multiple \
 ```
 
 **Behavior**
-- Reads all listed files in order and merges them seamlessly.
-- Each input is re-encoded using the same H.264/AAC settings.
-- Temporary file list is automatically created and deleted.
-- Logs detailed FFmpeg progress to the terminal.
+- Merges all listed videos sequentially.  
+- Re-encodes each input using the same H.264/AAC settings.  
+- Creates and deletes a temporary file list automatically.  
+- Displays each added file and overall progress in the terminal.  
+- Ensures the output file is playable immediately after completion.
 
-**When to use**
-- When combining multi-part video discs, episodes, or scene splits.
-- When creating a single playable MP4 from segmented source material.
+**When to Use**
+- To combine multi-part video discs, episodes, or segmented clips.  
+- When creating a single playback file from multiple source files.
 
 ---
 
@@ -131,8 +134,8 @@ video-tools convert-multiple \
 - Re-encoding ensures compatibility and stable playback.
 
 ### File Safety
-- Original files are untouched.
-- All intermediate list files are removed automatically.
+- Original files are untouched.  
+- All intermediate list files are removed automatically.  
 - FFmpeg handles SIGINT (Ctrl+C) gracefully—partially written files are still playable.
 
 ---
diff --git a/docs/Conversion_Settings.md b/docs/Conversion_Settings.md
index 13ddd35..4a390c4 100644
--- a/docs/Conversion_Settings.md
+++ b/docs/Conversion_Settings.md
@@ -1,22 +1,24 @@
-# Conversion Settings
+# docs/Conversion_Settings.md
+# Conversion Settings (v0.1.0)
 
 This file documents the default FFmpeg parameters used in `video-tools.sh` and explains why they are chosen.
 
 ---
 
 ## Output Format
+
 All conversions produce:
 ```
-Format: MP4
-Container: MPEG-4 Part 14
-Video Codec: H.264 (libx264)
+Format: MP4  
+Container: MPEG-4 Part 14  
+Video Codec: H.264 (libx264)  
 Audio Codec: AAC
 ```
 
-MP4 was chosen because:
-- It’s universally supported across modern devices.
-- It balances size and compatibility well.
-- H.264 encoding provides excellent quality at smaller bitrates.
+**Why MP4?**
+- Universally supported across modern devices.
+- Balances quality, compression, and compatibility.
+- H.264 encoding provides excellent visual quality at modest bitrates.
 
 ---
 
@@ -25,8 +27,8 @@ MP4 was chosen because:
 | Parameter | Value | Purpose |
 |------------|--------|----------|
 | `-c:v libx264` | H.264 video encoding | Modern, efficient codec with wide hardware support |
-| `-crf 18` | Constant Rate Factor | Maintains near-lossless visual quality; lower = better |
-| `-preset slow` | Encoding preset | Improves compression efficiency; trades some speed |
+| `-crf 18` | Constant Rate Factor | Maintains near-lossless visual quality (lower = better) |
+| `-preset slow` | Encoding preset | Improves compression efficiency at moderate CPU cost |
 | `-c:a aac` | Audio codec | Standard high-quality stereo audio |
 | `-b:a 192k` | Audio bitrate | Balances fidelity and file size |
 | `-movflags +faststart` | MP4 optimization | Enables faster playback start in players or web streams |
@@ -36,52 +38,52 @@ MP4 was chosen because:
 
 ## Quality vs. File Size
 
-The CRF scale (used by FFmpeg) defines quality and compression balance:
+The **CRF scale** (used by FFmpeg) defines the balance between quality and compression:
 
 | CRF | Description | Typical Use |
 |------|-------------|--------------|
 | 14–16 | Near lossless | Archival or professional mastering |
 | 18–20 | High quality | Everyday use, visually lossless |
-| 21–24 | Medium quality | Small file sizes, light compression |
-| 25+ | Low quality | Fast compression, heavy size reduction |
+| 21–24 | Medium quality | Smaller file sizes with light compression |
+| 25+ | Low quality | Fast compression, noticeable loss |
 
-The default of **CRF 18** keeps visual clarity virtually identical to the original while cutting most AVI or MPG files to **40–60% smaller** sizes.
+**Default CRF: 18**  
+Provides visually lossless results while reducing most AVI/MPG files to **40–60% smaller sizes**.
 
 ---
 
-## Why Preset "slow"
+## Why Use Preset “slow”
 
-The preset defines encoding effort vs. compression efficiency.  
-Options range from `ultrafast` → `veryslow`.
+The preset defines the trade-off between encoding speed and compression efficiency.  
+Range: `ultrafast` → `veryslow`.
 
-- **slow** provides strong compression without extreme CPU time.
-- Encoding speed is roughly 2–3× real-time on a midrange CPU.
-- File sizes are typically 10–20% smaller than `medium` preset at the same quality.
+- `slow` offers excellent compression without excessive CPU time.  
+- Typical speed: ~2–3× real-time on a midrange CPU.  
+- Output files are usually **10–20% smaller** than with `medium` preset at the same quality.
 
 ---
 
 ## Audio Strategy
 
-AAC at 192k is chosen for:
-- Wide playback compatibility (phones, TVs, players).
-- Transparent stereo sound for most sources.
-- Reasonable storage size (~2MB/minute of stereo audio).
+**AAC at 192k** is chosen for:
+- Broad device compatibility (phones, TVs, web players).  
+- Transparent stereo sound for most content.  
+- Efficient storage (~2 MB/min of stereo audio).
 
-If future needs arise, the tool can later support:
-- `-c:a copy` for untouched audio streams.
-- `-b:a 320k` for high-fidelity preservation.
+Future options may include:
+- `-c:a copy` for untouched audio streams.  
+- `-b:a 320k` for high-fidelity preservation.  
 
 ---
 
 ## Color Space & Scaling
 
-No scaling is applied by default.  
-The video retains original resolution and color profile.
+No scaling is applied by default — the video retains its original resolution and color profile.
 
-Upscaling and filtering will be handled in a separate command (`upscale-video`) in future versions, with support for:
-- FFmpeg’s `scale` and `zscale` filters.
-- `lanczos` resampling (for sharp, clean upscale).
-- Optional integration with ML-based models (Real-ESRGAN, waifu2x).
+Planned future command: `upscale-video`, supporting:
+- FFmpeg’s `scale` and `zscale` filters.  
+- `lanczos` resampling for sharp, clean upscales.  
+- Optional ML upscaling (Real-ESRGAN, waifu2x).
 
 ---
 
diff --git a/docs/README.md b/docs/README.md
index d007b43..d719425 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,4 +1,5 @@
-# Video Tools CLI
+# docs/README.md
+# Video Tools CLI (v0.1.0)
 
 A simple command-line utility for video conversion and merging using FFmpeg.  
 Designed for personal use and sharing with friends.  
@@ -38,7 +39,7 @@ sudo apt install ffmpeg    # For Debian or Ubuntu
 
 1. Clone or copy the repository:
    ```bash
-   git clone https://github.com/YourName/VideoTools.git
+   git clone https://git.leaktechnologies.dev/Leak_Technologies/VideoTools.git
    cd VideoTools
    ```
 
@@ -67,10 +68,11 @@ video-tools convert-single "input.avi" "output.mp4"
 | Video codec | `libx264` | High-quality H.264 encoding |
 | Audio codec | `aac` | High-quality AAC stereo audio |
 | Quality (CRF) | 18 | Visually lossless quality |
-| Preset | slow | Balances speed and compression |
+| Preset | `slow` | Balances speed and compression |
 | Audio bitrate | 192k | High-quality stereo output |
 
-These defaults prioritize quality while still reducing file sizes compared to older formats such as AVI or MPG.
+These defaults prioritize quality while still reducing file sizes compared to older formats such as AVI or MPG.  
+For more details, see [`docs/Conversion_Settings.md`](./Conversion_Settings.md).
 
 ---
 
@@ -84,7 +86,7 @@ video-tools convert-single \
 "Example Movie.mp4"
 ```
 
-Output:
+**Output**
 ```
 /home/stu/Videos/Example Movie.mp4
 ```
@@ -101,7 +103,7 @@ video-tools convert-multiple \
 "Example Movie Combined.mp4"
 ```
 
-Output:
+**Output**
 ```
 /home/stu/Videos/Example Movie Combined.mp4
 ```
@@ -123,15 +125,29 @@ Output:
 
 | Feature | Status |
 |----------|--------|
-| convert-single | ✅ Done |
-| convert-multiple | ✅ Done |
-| upscale-video | 🔜 Planned |
-| batch conversion | 🔜 Planned |
-| automatic format detection | 🔜 Planned |
+| `convert-single` | ✅ Done |
+| `convert-multiple` | ✅ Done |
+| `upscale-video` | 🔜 Planned |
+| `batch conversion` | 🔜 Planned |
+| `automatic format detection` | 🔜 Planned |
+
+---
+
+## Documentation Index
+
+| File | Description |
+|------|--------------|
+| [`docs/CLI_Functions.md`](./CLI_Functions.md) | Command usage reference |
+| [`docs/Conversion_Settings.md`](./Conversion_Settings.md) | Technical breakdown of FFmpeg defaults |
+| [`docs/Upscale.md`](./Upscale.md) | Planned module for loss-minimized video upscaling |
 
 ---
 
 ## License
 
 Free for personal use.  
-You can modify or share this tool with anyone.
+You may modify or share this tool with anyone.
+
+---
+
+End of File
diff --git a/docs/Upscale.md b/docs/Upscale.md
index 8e3057a..b5dce4c 100644
--- a/docs/Upscale.md
+++ b/docs/Upscale.md
@@ -1,4 +1,5 @@
-# Upscale Module (Planned)
+# docs/Upscale.md
+# Upscale Module (Planned) — v0.1.0
 
 The `upscale-video` command will provide loss-minimized video upscaling.
 
@@ -11,7 +12,7 @@ This module will allow upscaling of existing videos to higher resolutions such a
 - 1080p (Full HD)
 - 2160p (4K)
 
-It will use FFmpeg’s native scaling filters first and optionally integrate machine learning tools later.
+It will begin with FFmpeg’s native scaling filters and may later support machine learning-based methods.
 
 ---
 
@@ -33,10 +34,10 @@ Optional parameters:
 
 ## Default Behavior
 
-If no resolution is provided, the tool will upscale intelligently to the nearest standard resolution above the input video.
+If no explicit resolution is provided, the tool will upscale intelligently to the nearest standard resolution above the source.
 
-Example:
-- Input: 960×540 → Output: 1280×720
+**Examples:**
+- Input: 960×540 → Output: 1280×720  
 - Input: 1280×720 → Output: 1920×1080
 
 ---
@@ -50,9 +51,10 @@ ffmpeg -i input.mp4 -vf scale=1920:1080:flags=lanczos \
 -c:v libx264 -crf 18 -preset slow -c:a aac -b:a 192k output_1080p.mp4
 ```
 
-- `scale=1920:1080:flags=lanczos` → high-quality resampling
-- `lanczos` offers sharp, low-artifact upscale
-- Later versions may support `zscale` or ML-based filters
+**Explanation:**
+- `scale=1920:1080:flags=lanczos` → performs high-quality resampling.  
+- `lanczos` produces sharp, low-artifact results.  
+- Future versions may introduce `zscale` or machine-learning upscalers.
 
 ---
 
@@ -60,9 +62,9 @@ ffmpeg -i input.mp4 -vf scale=1920:1080:flags=lanczos \
 
 | Feature | Status |
 |----------|--------|
-| FFmpeg scaler (lanczos) | 🔜 Planned |
+| FFmpeg scaler (`lanczos`) | 🔜 Planned |
 | ML-based upscaling (Real-ESRGAN / waifu2x) | 🚧 Research |
-| Auto resolution detection | 🔜 Planned |
+| Auto-resolution detection | 🔜 Planned |
 | GPU acceleration support | 🔜 Planned |
 | Configurable presets | 🔜 Planned |
 
diff --git a/video-tools.sh b/video-tools.sh
index f5c1d1e..302cfc1 100755
--- a/video-tools.sh
+++ b/video-tools.sh
@@ -1,17 +1,19 @@
 #!/usr/bin/env bash
-#
+# video-tools.sh
+# ----------------------------------------------------------
 # Simple FFmpeg CLI Toolset
-# -------------------------
 # Provides easy commands for single or multi-file video conversion.
 # Works on Linux and Windows (Git Bash / WSL) as long as ffmpeg is installed.
-#
+# ----------------------------------------------------------
 
 set -euo pipefail
 
 # ==========================================================
 # Configuration system
 # ==========================================================
-CONFIG_FILE="$(dirname "$0")/config/config.json"
+SCRIPT_DIR="$(dirname "$0")"
+CONFIG_FILE="$SCRIPT_DIR/config/config.json"
+LOG_DIR="$HOME/.local/share/video-tools/logs"
 
 # -------------------------
 # Default configuration
@@ -22,7 +24,7 @@ AUDIO_CODEC="aac"
 CRF="18"                  # lower = higher quality
 PRESET="slow"             # slower = better compression
 AUDIO_BITRATE="192k"
-VERSION="0.1.0"
+VERSION="0.1.1"
 
 # ==========================================================
 # Utility: Colour logging
@@ -39,7 +41,7 @@ warn()    { echo -e "${YELLOW}[WARN]${NC} $*"; }
 error()   { echo -e "${RED}[ERROR]${NC} $*" >&2; }
 
 # ==========================================================
-# Check dependencies early
+# Dependency check
 # ==========================================================
 if ! command -v ffmpeg >/dev/null 2>&1; then
     error "ffmpeg is not installed or not in PATH."
@@ -62,6 +64,33 @@ else
 fi
 
 mkdir -p "$OUTPUT_DIR" || { error "Failed to create output directory $OUTPUT_DIR"; exit 1; }
+mkdir -p "$LOG_DIR" || { error "Failed to create log directory $LOG_DIR"; exit 1; }
+
+# ==========================================================
+# Conversion Profiles
+# ==========================================================
+apply_profile() {
+    local profile="$1"
+    case "$profile" in
+        hi-rate|--hi-rate)
+            info "Applying high bitrate profile..."
+            CRF="14"
+            PRESET="veryslow"
+            AUDIO_BITRATE="320k"
+            ;;
+        portable|--portable)
+            info "Applying portable/mobile profile..."
+            CRF="24"
+            PRESET="faster"
+            AUDIO_BITRATE="128k"
+            ;;
+        default|--default|"")
+            ;;
+        *)
+            warn "Unknown profile: $profile — ignoring."
+            ;;
+    esac
+}
 
 # ==========================================================
 # Header output
@@ -78,6 +107,81 @@ print_header() {
     echo "----------------------------------------------"
 }
 
+# ==========================================================
+# Path sanitization (handles spaces, quotes, etc.)
+# ==========================================================
+safe_path() {
+    local p="$1"
+    printf "%s" "$p" | sed "s/'/'\\\\''/g"
+}
+
+sanitize_name() {
+    local name="$1"
+    echo "$name" | sed 's/[^A-Za-z0-9._-]/_/g'
+}
+
+# ==========================================================
+# Summary report parser
+# ==========================================================
+print_summary() {
+    local log_file="$1"
+    local input="$2"
+    local output="$3"
+    local start_time="$4"
+    local end_time="$5"
+
+    local elapsed=$((end_time - start_time))
+    local elapsed_min=$((elapsed / 60))
+    local elapsed_sec=$((elapsed % 60))
+
+    local duration bitrate speed fps frames mux_overhead vbitrate abitrate
+    duration=$(grep -Eo "time=[0-9:.]+" "$log_file" | tail -1 | cut -d= -f2)
+    bitrate=$(grep -Eo "bitrate=[0-9.]+kbits/s" "$log_file" | tail -1 | awk -F= '{print $2}')
+    speed=$(grep -Eo "speed=[0-9.]+x" "$log_file" | tail -1 | cut -d= -f2)
+    fps=$(grep -Eo "fps=[0-9.]+" "$log_file" | tail -1 | cut -d= -f2)
+    frames=$(grep -Eo "frame=[0-9]+" "$log_file" | tail -1 | awk -F= '{print $2}')
+    mux_overhead=$(grep -Eo "muxing overhead: [0-9.]+%" "$log_file" | tail -1 | awk '{print $3}')
+    vbitrate=$(grep -Eo "kb/s:[0-9.]+" "$log_file" | tail -1 | cut -d: -f2)
+    abitrate=$(echo "$AUDIO_BITRATE" | sed 's/k//')
+
+    echo ""
+    echo "----------------------------------------------"
+    echo "Conversion Summary"
+    echo "----------------------------------------------"
+    echo "Input File     : $input"
+    echo "Output File    : $output"
+    echo "Log File       : $log_file"
+    echo "Duration       : ${duration:-unknown}"
+    echo "Encoding Speed : ${speed:-unknown}"
+    echo "Elapsed Time   : ${elapsed_min}m ${elapsed_sec}s"
+    echo "Status         : ✅ Successful"
+    echo "----------------------------------------------"
+    echo "[Technical Stats]"
+    echo "Average Bitrate : ${bitrate:-N/A}"
+    echo "Video Bitrate   : ${vbitrate:-N/A} kb/s"
+    echo "Audio Bitrate   : ${abitrate:-N/A} kb/s"
+    echo "Frames Encoded  : ${frames:-N/A}"
+    echo "FPS Achieved    : ${fps:-N/A}"
+    echo "Mux Overhead    : ${mux_overhead:-N/A}"
+    echo "CRF Setting     : $CRF"
+    echo "----------------------------------------------"
+    echo ""
+}
+
+# ==========================================================
+# Generate timestamped log file
+# ==========================================================
+generate_logfile() {
+    local output_name="$1"
+    local timestamp
+    timestamp=$(date +"%Y-%m-%d_%H-%M-%S")
+    local base
+    base=$(basename "$output_name" .mp4)
+    local safe_base
+    safe_base=$(sanitize_name "$base")
+    echo "$LOG_DIR/${timestamp}_${safe_base}.log"
+}
+
 # ==========================================================
 # Convert one file
 # ==========================================================
@@ -85,85 +189,243 @@ convert_single() {
     local input="$1"
     local output_name="$2"
     local output_path="$OUTPUT_DIR/$output_name"
+    local safe_input
+    safe_input="$(safe_path "$input")"
+    local log_file
+    log_file=$(generate_logfile "$output_name")
+    local start_time end_time
 
     print_header
     info "Converting single video..."
     info "Input : $input"
     info "Output: $output_path"
+    info "Log   : $log_file"
 
     if [[ ! -f "$input" ]]; then
         error "Input file not found: $input"
         exit 1
     fi
 
+    start_time=$(date +%s)
     ffmpeg -hide_banner -loglevel info -fflags +genpts \
         -i "$input" \
         -c:v "$VIDEO_CODEC" -crf "$CRF" -preset "$PRESET" \
         -c:a "$AUDIO_CODEC" -b:a "$AUDIO_BITRATE" -movflags +faststart \
-        "$output_path" || { error "Conversion failed."; exit 1; }
+        "$output_path" 2>&1 | tee "$log_file"
+    end_time=$(date +%s)
 
+    ln -sf "$log_file" "$LOG_DIR/latest.log" 2>/dev/null || true
     success "Conversion complete: $output_path"
+    print_summary "$log_file" "$safe_input" "$output_path" "$start_time" "$end_time"
 }
 
 # ==========================================================
 # Combine multiple files
 # ==========================================================
 convert_multiple() {
-    local args=("$@")
+    # Rebuild args array safely to preserve quoted file paths
+    local args=()
+    while [[ $# -gt 0 ]]; do
+        args+=("$1")
+        shift
+    done
+
+    # Ensure at least two inputs + one output
+    if [[ ${#args[@]} -lt 3 ]]; then
+        error "Usage: $0 convert-multiple <input1> <input2> ... <output.mp4> [--hi-rate|--portable]"
+        exit 1
+    fi
+
+    # Extract and verify output filename
     local output_name="${args[-1]}"
     unset 'args[-1]'
+    if [[ -z "${output_name:-}" ]]; then
+        warn "Output name missing — defaulting to combined_output.mp4"
+        output_name="combined_output.mp4"
+    fi
+
+    # Setup working paths
     local list_file
     list_file=$(mktemp)
     local output_path="$OUTPUT_DIR/$output_name"
+    local log_file
+    log_file=$(generate_logfile "$output_name")
+    local start_time end_time
 
     print_header
     info "Combining multiple videos..."
+    info "Output: $output_path"
+    info "Log   : $log_file"
+
+    # Verify each input and build concat list
     for input in "${args[@]}"; do
         if [[ ! -f "$input" ]]; then
-            error "Missing input file: $input"
+            error "Missing input file: '$input'"
             rm -f "$list_file"
             exit 1
         fi
-        echo "file '$input'" >> "$list_file"
+        printf "file '%s'\n" "$(safe_path "$input")" >> "$list_file"
         info " + Added: $input"
     done
     echo "----------------------------------------------"
 
+    # Run FFmpeg and record timing
+    start_time=$(date +%s)
     ffmpeg -hide_banner -loglevel info -f concat -safe 0 -i "$list_file" \
         -c:v "$VIDEO_CODEC" -crf "$CRF" -preset "$PRESET" \
         -c:a "$AUDIO_CODEC" -b:a "$AUDIO_BITRATE" -movflags +faststart \
-        "$output_path" || { error "Merge failed."; rm -f "$list_file"; exit 1; }
+        "$output_path" 2>&1 | tee "$log_file"
+    end_time=$(date +%s)
 
+    # Cleanup and summary
+    ln -sf "$log_file" "$LOG_DIR/latest.log" 2>/dev/null || true
     rm -f "$list_file"
     success "Combined video created: $output_path"
+    print_summary "$log_file" "Multiple inputs" "$output_path" "$start_time" "$end_time"
 }
 
+
+# ==========================================================
+# Show concise or verbose video information (cross-platform)
+# ==========================================================
+show_videoinfo() {
+    if ! command -v ffprobe >/dev/null 2>&1; then
+        error "ffprobe is not installed or not in PATH."
+        exit 1
+    fi
+
+    if [[ $# -lt 1 ]]; then
+        error "Usage: $0 videoinfo <file1> [file2 ...] [--verbose]"
+        exit 1
+    fi
+
+    # Detect verbose flag
+    local verbose=false
+    for arg in "$@"; do
+        [[ "$arg" == "--verbose" ]] && verbose=true
+    done
+
+    for input in "$@"; do
+        [[ "$input" == "--verbose" ]] && continue
+        if [[ ! -f "$input" ]]; then
+            error "File not found: $input"
+            continue
+        fi
+
+        echo "----------------------------------------------"
+        echo "File: $input"
+        echo "----------------------------------------------"
+
+        if $verbose; then
+            ffprobe -v error \
+                -show_entries format=filename,format_name,duration,size,bit_rate \
+                -show_streams \
+                -of default=noprint_wrappers=1:nokey=0 \
+                "$input" | sed 's/^/  /'
+        else
+            # Collect metadata safely
+            local duration size format vcodec acodec width height fps profile pix_fmt dar sar vbitrate abitrate channels arate bitrate
+
+            duration=$(ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 "$input")
+            size=$(ffprobe -v error -show_entries format=size -of default=noprint_wrappers=1:nokey=1 "$input")
+            format=$(ffprobe -v error -show_entries format=format_name -of default=noprint_wrappers=1:nokey=1 "$input")
+            bitrate=$(ffprobe -v error -show_entries format=bit_rate -of default=noprint_wrappers=1:nokey=1 "$input")
+
+            vcodec=$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=noprint_wrappers=1:nokey=1 "$input")
+            profile=$(ffprobe -v error -select_streams v:0 -show_entries stream=profile -of default=noprint_wrappers=1:nokey=1 "$input")
+            width=$(ffprobe -v error -select_streams v:0 -show_entries stream=width -of default=noprint_wrappers=1:nokey=1 "$input")
+            height=$(ffprobe -v error -select_streams v:0 -show_entries stream=height -of default=noprint_wrappers=1:nokey=1 "$input")
+            fps=$(ffprobe -v error -select_streams v:0 -show_entries stream=r_frame_rate -of default=noprint_wrappers=1:nokey=1 "$input" | awk -F'/' '{if ($2>0) printf "%.2f", $1/$2; else print $1}')
+            pix_fmt=$(ffprobe -v error -select_streams v:0 -show_entries stream=pix_fmt -of default=noprint_wrappers=1:nokey=1 "$input")
+            dar=$(ffprobe -v error -select_streams v:0 -show_entries stream=display_aspect_ratio -of default=noprint_wrappers=1:nokey=1 "$input")
+            sar=$(ffprobe -v error -select_streams v:0 -show_entries stream=sample_aspect_ratio -of default=noprint_wrappers=1:nokey=1 "$input")
+            vbitrate=$(ffprobe -v error -select_streams v:0 -show_entries stream=bit_rate -of default=noprint_wrappers=1:nokey=1 "$input")
+
+            acodec=$(ffprobe -v error -select_streams a:0 -show_entries stream=codec_name -of default=noprint_wrappers=1:nokey=1 "$input")
+            abitrate=$(ffprobe -v error -select_streams a:0 -show_entries stream=bit_rate -of default=noprint_wrappers=1:nokey=1 "$input")
+            channels=$(ffprobe -v error -select_streams a:0 -show_entries stream=channels -of default=noprint_wrappers=1:nokey=1 "$input")
+            arate=$(ffprobe -v error -select_streams a:0 -show_entries stream=sample_rate -of default=noprint_wrappers=1:nokey=1 "$input")
+
+            # Compute duration minutes without bc
+            local mins secs
+            mins=$(( ${duration%.*} / 60 ))
+            secs=$(( ${duration%.*} % 60 ))
+
+            # Simple size + bitrate formatting (cross-platform safe)
+            local size_mb=$(( size / 1048576 ))
+            local bitrate_mbps=$(( bitrate / 1000000 ))
+            local vbitrate_mbps=$(( vbitrate / 1000000 ))
+            local abitrate_kbps=$(( abitrate / 1000 ))
+
+            echo "  Duration:      ${duration:-N/A} sec (${mins}m ${secs}s)"
+            echo "  Size:          ${size_mb} MB"
+            echo "  Container:     ${format:-N/A}"
+            echo "  Video Codec:   ${vcodec:-N/A} (${profile:-N/A})"
+            echo "  Resolution:    ${width:-N/A}x${height:-N/A} @ ${fps:-N/A} fps"
+            echo "  Aspect Ratio:  ${dar:-N/A} (SAR ${sar:-N/A})"
+            echo "  Pixel Format:  ${pix_fmt:-N/A}"
+            echo "  Video Bitrate: ${vbitrate_mbps} Mbps"
+            echo "  Audio Codec:   ${acodec:-N/A}"
+            echo "  Audio:         ${channels:-N/A} ch @ ${arate:-N/A} Hz"
+            echo "  Audio Bitrate: ${abitrate_kbps} kbps"
+            echo "  Overall Rate:  ${bitrate_mbps} Mbps"
+        fi
+
+        echo ""
+    done
+}
+
+
 # ==========================================================
 # Dispatcher
 # ==========================================================
 case "${1:-}" in
     convert-single)
         shift
-        if [[ $# -ne 2 ]]; then
-            error "Usage: $0 convert-single <input> <output.mp4>"
+        if [[ $# -lt 2 ]]; then
+            error "Usage: $0 convert-single <input> <output.mp4> [--hi-rate|--portable]"
             exit 1
         fi
-        convert_single "$@"
+        # Optional profile flag
+        if [[ $# -eq 3 ]]; then
+            apply_profile "${3:-}"
+        fi
+        convert_single "$1" "$2"
         ;;
     convert-multiple)
         shift
         if [[ $# -lt 3 ]]; then
-            error "Usage: $0 convert-multiple <input1> <input2> ... <output.mp4>"
+            error "Usage: $0 convert-multiple <input1> <input2> ... <output.mp4> [--hi-rate|--portable]"
             exit 1
         fi
+
+        # Handle optional profile flag
+        last_arg="${@: -1}"
+        case "$last_arg" in
+            --hi-rate|--portable)
+                apply_profile "$last_arg"
+                set -- "${@:1:$(($#-1))}"
+                ;;
+        esac
+
         convert_multiple "$@"
         ;;
+    videoinfo|--videoinfo|--fileinfo)
+        shift
+        show_videoinfo "$@"
+        ;;
     *)
         echo "Video Tools v$VERSION"
         echo "Usage:"
-        echo "  $0 convert-single <input> <output.mp4>"
-        echo "  $0 convert-multiple <input1> <input2> ... <output.mp4>"
+        echo "  $0 convert-single <input> <output.mp4> [--hi-rate|--portable]"
+        echo "  $0 convert-multiple <input1> <input2> ... <output.mp4> [--hi-rate|--portable]"
+        echo "  $0 videoinfo <file1> [file2 ...]"
+        echo ""
+        echo "Profiles:"
+        echo "  --hi-rate   Highest bitrate and quality (CRF 14, 320k audio)"
+        echo "  --portable  Smaller file size for mobile (CRF 24, 128k audio)"
         echo ""
         echo "All outputs will be saved in: $OUTPUT_DIR"
+        echo "Logs stored in: $LOG_DIR"
         ;;
 esac