If you want to read a BivX on your PC use the Freeware VLC for instance (just have to choose track 1 or 2 in audio)
If your DVD/DviX reader can't read (test ->http://divxtest.surdvd.com/resultats.php3) --> delete one audio track Virtualdubmod (freeware too) can help you or simply convert to DVD with ConvertXtoDVD (present on the site)
1. Open virtualdubmod
2. Load avi
3. Under streams, click onto streams list (its the first one)
4. Disable the stream that’s non English ( With me French=1 & English=2)
5. Move the stream that you wish to use up in position.
6. Hit OK
7. Have video set to direct stream copy
8. Save avi as.....OK
On a mac - just open with Quicktime and check/uncheck the language as desired.
QuickTime Player --> Window --> Show Movie Properties