Problem with the audio

[Exoskeletor]

Hi guys. i have a problem with one of my movies. the film machine cant make it a dvd movie. virtual dub shows this message:

"VirtualDub has detected an improper vbr audio encoding in the source avi file and will rewrite the audio header with standard CBR values during proccesing for better compatibility. This may introduce up to 35000 ms of skew from teh video stream. if this is unaccetable, decompress the entire audio steam to an uncompressed WAV file and recompress with a constant bitrate encoder. (bitrate 138,4 +- 40kbps)"

I have export the audio with the virtual dub and i try to make it again with besweet into a cbr audio and them join the audio file with the video with avimux but i was having the same problem. i try to set interleaving options in the audio file and edit it again but when i am try to open it with the film machine an error occurs:
"out of bounds (15)" (something like that)

I try to save it again with virtual dub (video:direct sream copy & audio: full processing mode) but, the first frames of my video are destroyed. why this is happening?

what i can do about that?