Bad DVD Burns

I have a decent system an updated windows xp mce, When i burn dvds they get digetized and freeze up when i watch them. I doesnt happin always just most of the time. I have replaced burners, IDE cables power supply, I reformatted windows and turn off all running programs i also burn at 6x. I use anydvd Imgburn nero and dvd shrink. What steps should i take to diagnose my problem.

Please help my problem is so annoying.

My system is in my signature.

What’s the media you use as this is the most likely cause? Verbatim or Taiyo Yuden are the obvious choices.

Also slow burning doesn’t necessarily give a better burn. Burning quality 16x media at 12x gives very good burns & that’s what I’m doing all the time.