Hi I use an external Lacie drive (Bigger Disk Extreme 2TB) to store all my music (iTunes etc), my video library, photos etc. For the past 3 months I have had numerous problems with the drive connected via FW800. I must have rebuilt the drive directory more than 15 times with Diskwarrior and it would still come up with all sorts of errors, performance issues, I/O issues. The same applies when I connect through FW400. When I connect the drive via USB2.0 the problems disappear. In fact, today my iTunes Library was unreadable and reported as corrupted, but when I switched to USB 2.0 connection everything was fine. I've also tried the FW800 connection to another Macbook Pro running Tiger and everything was fine too. This seems to be a Leopard issue. Anyone else experiencing similar problems?