My Pioneer A05 burner has given me error free results when backing up DVD movies using Pioneer or Princo DVD-R media and DVD Decrypter/DVDXCopy. However I have been unable to achieve a perfect copy. Although the copies are 95% fine, the quality is detracted by the blocky streaking and sometime green artifacts that can sometimes occur. I was able to reduce the problem by updating my APSI layers, but the problems still exist. I was wondering whether or not this might be a hardware issue, such as bit rate etc? I normally close all applications while burning, my setup is a P3 700MHz, XP OS, 384Mb of RAM and 80Gb HDD 7200rpm. If anyone could some light on this matter I'd really appreciate it. Cheers!