FireWire 800 vs. FireWire 400 drives We have previously expressed concerns, based on numerous reports of problems with FireWire 400 drives and Panther, that this issue may not be restricted to FireWire 800/Oxford 922 drives (or, at the very least, that a different issue is affecting some FireWire 400 drives). We also reported on a claim by Oxford Semiconductor that it would be "impossible" for this official bug to affect Oxford 911 chipsets. LaCie confirms Oxford's position, stating that the circumstances and technical details surrounding the bug that Apple has acknowledged relate to specific ways in which FireWire 800/Oxford 922 drives communicate with the operating system. In other words, since FireWire 400 drives, and drives using the Oxford 911 chipset, don't communicate with connected computers in exactly the same manner as FireWire 800/Oxford 922 drives, this particular bug cannot affect them.
This does not rule out the possibility that there may be issues affecting other drives. However, it means that if other drives are indeed having problems with Panther, they are having problems for different reasons.