[prasanna]

Hi Vincent, I also had problem when converting the VOB files directly using AMV converter instead i found a work around.
First u convert the VOB files into avi files.Then try converting those avi files using AMV converter tool it will work.
For ripping the DVD u can use DVD decryptor.It will rip the DVD files onto ur hard disk then use softwares like PocketDivxencoder to convert them to avi.
Make sure u have installed all the necessary codes beforehand.U can install K-lite mega codec pack.
Hope this helps.

prasanna