I've recently purchased this drive and had no problems installing it. However, whenever I try to master a CD at it's MAX speed (8x), it always produces a coaster. Any other speed slower than 8x works perfectly. I tried all configurations including putting it as a slave/master/on it's own channel (whatever). FYI, I am running this burner on a AMD K6-2 500 on a Tyan S1598 motherboard. If anybody has any suggestions, I would appreciate any help on this.