so what do you think was eating the free space? I mean, I know there's always some space eaten up for some sort of essential thingummy that's part of the memory, and then there's the iffy file space claim that varies in size depending on what conversion factor is used for bytes into GBs... But, I'm not tech savvy enough to know the specifics off the top of my head. I got a 16GB microSD for my PSP, and when I stuck it in the machine, it only has about 15.8GB free space, maybe a tad less. Go figure.