I'm currently trying to download games and patches for my PS3 but I seem to have filled the internal HD, and I can't figure out how to make an external HD that I can back games up on with my Macintosh. I keep getting conflicting walkthroughs and have erased, formatted, and partitioned a portable HD at least a dozen times in different ways and still the PS3 doesn't recognize it. There's a lot more I'd like to grab while the PS3 store is up, but I'm getting messages that I can't download any more since the internal drive is full. I ordered an officially licensed PS4 external HD from Amazon, I've read that it's also properly formatted for the PS3 so I can back up to that hopefully. I've got craploads of games just to download updates for - I have a Japanese copy of Okami which never came out physically in the US, when I ran the game the first time it said there was an update and it downloaded something like 4 and a half gigs of data. Turns out it recognized my North American machine was playing a Japan-only copy of Okami and it nicely downloaded the English digital version for me. Too bad my other Japanese games don't do that.