I tried to make a DivX movie from a VideoTS ripped with mac the ripper and compressed with DVD2one.

The original videoTS is #0

The ripped one, #1, have exactly the same tracks for audio and subtitles (1 english {?}, 2 french {?}, 3 turkish, 4 english, 5 french, ...).

The final VideoTS, compressed is #2. I delete the first 3 tracks and keep 4 and 5. The result is track 1 english, track 2 french.

ffmpegX was unable to display any subtitles from VideoTS#2 in mplayer. Tracks was correctly detected by ffmpegX.

So I tried to load VideoTS #1 in ffmpegX and choose:
Track 1: nothing is displayed
Track 2: nothing is displayed
Track 4: english is displayed correctly
Track 5: french is displayed correctly

So, moving tracks 4 and 5 to the first and second position prevent ffmpegX to display these tracks correctly ? Am I wrong ?