CloneDVD error
 

I'm using CloneDVD 1.1.7.1, but on almost all DVD's I want to backup I get an error:

Invallid block start code

This occurs after about 45% processing of the video files.

The problem is the Plextor PX116A DVD drive, when reading from another drive there are no problems.

I also got the error with clonedvd 1.1.7.1 when the disk almost finished 80% and It took me 3 error dvd+r ( HP 200e).