I was hoping somebody can help me with this. I have an older firewire 120gb external hard drive that I used to use on my PC and want to start using with my mac. The drive is formatted to NTFS which my mac says is readable only and will not let me do anything with it. SO I tried going to the Disk Utility to try and format it to mac standards but (there is no data on it I need so it can be fully erased) but the disk utilities options for erase are all greyed out. Is there some way I can format this to use with the mac? I'd even be happy with an external program. Thanks for the advice!