I recently built a pc with an AMD-XP2600 processor and 512MB ram. I purchased a cheap 52x CDRW drive from Best Buy. This cdrw flies, but after burning 3 or 4 consectutive cds, I start getting buffer underrun errors. I've tried using both the Nero Express software that came with the drive and Roxio 5. Is it possible that the drive is overheating? I have installed two case fans, but I have not tried burning multiple cds yet. Any other suggestions?