I thought since many of us video guys may not have the $ for thunderbolt at the time and are still currently using FW800, then this would be a good place to ask this question. I have a Buffalo Combo 4 (yeah, yeah I know) external harddrive and often having it's having trouble mounting to my computer through FW800 and sometimes even with USB. Thinking this disk needed a refresh, I removed all my files (put on my computer's HDD), reformatted and then repaired. When I check this disk in disk utility it says that both my Mac and Windows partitions are working properly. What could be the cause of it having trouble mounting so very often? Two different partitions? Could the fact that I usually keep it off, sometimes over a week have anything to do it with it and if so, why? PS - Possibly the connections or the FW800 cord, but I highly doubt it because it does it with USB..