"Trouble with Mac"1.5 starson by gogogut
Pros: Cost on sale. Flexibility. Speed.
Cons: Goes to sleep on mac, hanging sustem and forcing hard restart. Bad for computer and drive. Not good for dealing with data you care about.
Summary: It is amazing that cnet keeps writing that these drives work well with mac. Tere are countless threads in support forums about the fact that this drive goes to sleep after a few minutes on a mac and can't be awakened. It hangs the system and you have to do a hard restart. This is especially horrible when trying to back up precious data to this drive. All of a sudden you have to hard restart everything and hope your data is okay. Seagate has offered some utilities to try and address the issue, but no one reports it succeeding. Some users have purchased the FireWire adapter to try to avoid the problem. Again, no conclusive results. And for some reason, I get faster speeds using the USB 3.0 (which runs at 2.0 on mac) than the FireWire. Not sure why this is.
If seagate could solve this problem or if you are lucky and don't have the drive fall asleep on you, then the drive is fast and flexible. But I am not sure that is a bet worth taking with precious data. I cannot recommend this purchase for anyone with a mac.