Just a few words on a problem I had with my 15 inch Mac OS X 10.5 with Express Card slot and Duel Adapter system for transferring P2 cards. System had been very reliable for a year and a half. Usually reboot needed to get the cards to be recognized but very good otherwise. A few weeks ago one of my guys said the computer was acting finicky. Seemed to be freezing and quitting in the middle of a card transfer. Some of it sounded like operator error but not all. Sometimes the computer would freeze after a card had been it requiring a hard reboot but otherwise the computer checked out okay. Had a big 3 camera shoot with a lot of cards and the computer and duel adapter balked at the beginning and then worked fine through 400 gigs of transfers. After thinking about it I thought maybe it was the Express Card slot getting damaged or the Duel Adapter. Eventually the Duel just wouldn't mount properly 9 out of 10 times. Ran some hardware tests on the computer and they came out fine. Got my hands on another Duel and everything worked like the old days. Found and bought another new Duel adapter and so far everything is cool again. So my lesson is if your transfers with the Duel Adapter are not going well it may be nothing more serious than the adapter going south.