VOB -> MP4 converted audio problem

[tecstar]

I have ripped a vob file using DVD Decrypter, and it plays ok in Nero Showtime.
I used Super and Videora iPod Converter, and the video is OK, but the audio seems speeded up (or high pitched - as it is not shorter than the video).
I dont understand why. Has anyone else had this problem?

[redwudz]

Is the audio in sync with the video? Did you do any framerate conversions like NTSC<>PAL? Check the framerate of the original to the final product. Gspot 2.60 should be able to do that. You can adjust the pitch with a audio editor like the freeware Audacity, but you need to fix any sync problems first.

[tecstar]

The audio seems to be in sync.
I didn't do any other conversion other than use super and videora (separately) to try and convert the vob to mp4.
Could there be something about the vob that is causing a problem with the encoder. Should I try to convert the VOB to mpeg 2 or something?