Please explain error message?

Hi All

I use AnyDVD ver. 5961, 1click DVD copy Pro ver. 221 and Nero ver 7.

Today I was making a back up copy of a DVD and I received the following error while trying to burn with Nero:

can anyone explain what this means, I disregared the error and burned the DVD and it seemed to play fine. :confused: :confused:

Any help is appreciated. :bow:

Usually this means that vob files contain something different from what is specified in ifo files.

Can be a bad ripping or a bad removed copy protection.