Is there anyway to mark bad sectors on a Mac? I know with PCs that you can run scandisk or another norton utilities tool to mark the bad sectors, but Macs don't use a FAT style partitioning type, they use a proprietary that can't handle the marking of bad sectors? I was told by someone that there really is no way of marking sectors on a drive "bad" when using a Mac. But that information was given to me prior to OS X. Is there a way now (2 years or so since I was told Mac can't handle bad sectors) to mark sectors as bad, or do I need to order a new drive?