dvd author - illegal audio format (ac3)

[realas]

goal - convert divx with ac3 into dvd.
so demuxed ac3 from avi with virtualdubmod. then converted avi into m2v (with no sound) with tmpgenc. but when loaded ac3 file into dvd author it shows "illegal audio format"...
any help?

[realas]

besliced fixed it. everything's ok