[spooky]

Does this happen with all PSX backups you do or just D/D?

There are a few reasons this may be happening and here are the most common.

Never record on the fly, always make an image to your Hard drive first and then burn the image.

What speed do you burn? try at 2x with RAW checked for CDRWin this will reduce your errors. Set read to 4x.(data and audio)

Turn off your screensaver.

Disable Power Management Support in Windows and in Bios.

Remove all programs from your start up menu.

Disable any schedualed tasks you may have set up.

Remove or disable any virus software you may have running.

Basically switch off, disable, erase anything that may cause an interruption to the flow of data from you Hard drive.