AVI to SVCD - audio is shorter than video

[xhoangx]

i tried making a svcd from a divx and the audio is shorter than the video by almost 10 seconds. i even ripped the audio from the divx with virtualdub and looked at the file sizes and the wav file was shorter than the video. when i play the divx the sound is fine and syncs up with the movie from beginning to end, but when i convert it, the sound is out of sync with the video because the sound file is shorter than the video. i also tried encoding without extracting the wav first with virtualdub but i get the same result. by the way, this is not my first time converting from divx to svcd, i did this three other times and it went flawlessly, i don't know why this is happening. i hope you guys understand what i wrote. by the way i used the guide from the vcdhelp convert section

[Baldrick]

have you tried convert the audio to wav with some other tool, like avi2wav or goldwave?
www.vcdhelp.com/tools#audioenc

[secretagent]

you may have vbr audio. in which case you need to correct the vbr to constant bitrate

[xhoangx]

thanks for replying peepos
-in avi to wav i get an error saying "file is not indexed type of avi"
-haven't tried goldwave yet, it is taking quite a while to load the avi
-how do i go about converting the sound from the avi from vbr to cbr(if that is the problem), because if i extract it into wav, isn't already cbr, so how do i do this from the divx file

[secretagent]

if you open the avi in vdub it will tell you when it opens it if it detects a vbr audio

[xhoangx]

just finished saving file using goldwave, got the same outcome
any other ideas?

[xhoangx]

virtualdub does not detect it as vbr
here is what i get for the audio stream from avi information in vdub if it (makes any difference)

sampling rate: 44100hz
channels: 2(stereo)
Sampling Precision: 0-bit
Compression: Fraunhofer IIS MPEG Layer 3 codec
preload skew: 19 samples (0.00s)
#of frames: 51224
Min/avg/max/total frame size: 1152/1839/21888(92029k)

any more suggestions?