I have a similar problem as ID:1897216. The resync of modified tracks is not consistently working when I change ID3 tags in my music files.
I made changes to 6 mp3 files ID3v2 tags:
1. Added album art -> does not sync
2. Changed Genre -> does not sync
3. Changed Year -> does not sync
4. Changed Song Title -> does sync
5. Changed Artist Name -> dies sync
6...
2009-05-06 17:58:14 UTC in iPod Winamp support plugin
