Asking Why squares might still happen

[lemonrev]

I have no green spots appearing but i have a few dvd's in a set that refuse to rip with other software, when in normal playback it works flawlessly, However when playing back using Prism or any other software i get error boxes like files corrupted somehow, I think its got some sort of code that stops programs from ripping.

I have found Prism to actually convert the files which is a massive plus but the error blocks also more than an 30 mins though i get this high pitched wine noise in the audio which i know is not meant to be there.

With those options enabled playback before ripping still has the video blocking at top and bottom sections of video.

Is there a way i can tell the ripping program to slow down when ripping a video that might have errors on it, or even a correction error point please ?

Thanks.