AC3 and tmpgenc dvd author problem

[SupaTek]

The Problem is that I have got an avi with ac3 sound, I have dumuxed with virtualdubmod and saved the ac3 file. After converting the avi video to mpeg2, I enter it in tmpgenc dvd author (no prob) but when I enter the ac3 file, I get a fatal error warning stating that the sound is not a dvd compatible file.
Can anyone help please
Thnx

[Baldrick]

tried fixed it?
ac3fix gui or beslice(included in besplit).

[SupaTek]

tried fixed it?

I'll give it a try, Thnx

[SupaTek]

OK, I've tried the fix tools but there is nothing wrong with the ac3 file so it can't be fixed. tmpgenc dvd author still states that it is an illegal audio format. If i convert to PCM everything is ok, but I want to keep the ac3.
Any more suggestions?
thnx

[Timmychuck]

I could be wrong, but I don't thank tmpgenc Dvd auther don't take any audio file. You going to have to mux the mpeg and ac3 file first.