Problem Converting Copied DVDs to iPod Format

I currently have DVDFab Platinum 3.0.2.0 and when I copy full DVD movie it works fine. However, when I then insert the copied movie and try to convert it to an iPod video file, it shows an error message. Has anyone else had this problem/know how to fix it?

Thanks for any help.

hi, whlabus

Please tell me more information about your error message, and I need that to fix the problem.