Created AUTHOR_MODULE.md covering all features in detail:
Chapter Detection:
- How scene detection works (FFmpeg filter threshold)
- Sensitivity slider guide (0.1-0.9 range explained)
- Visual preview feature with thumbnails
- Use cases for different video types
- Technical implementation details
DVD Timestamp Correction:
- SCR backwards error explanation
- Automatic remux solution (-fflags +genpts)
- Why it's needed and how it works
- Performance impact (negligible)
Authoring Log Viewer:
- Tail behavior (last 100 lines)
- Performance optimizations explained
- Copy Log and View Full Log buttons
- Memory usage improvements (O(1) vs O(n))
Complete Workflows:
- Single movie to DVD
- TV series multi-title disc
- Concert with manual chapters
Troubleshooting:
- SCR errors
- Too many/few chapters detected
- UI lag issues (now fixed)
- ISO burning problems
- Playback stuttering
Technical Details:
- Full encoding pipeline with commands
- Chapter XML format
- Temporary file locations
- Dependencies and installation
- File size estimates for NTSC/PAL
Also updated DVD_USER_GUIDE.md:
- Removed branding footer
- Added reference to AUTHOR_MODULE.md for technical details
