I have two memory sticks that I use for dissapointing still images from my otherwise wonderful Sony TRV520. I would like to use them as a floppy on my iBook running 10.2.5. I have a MSAC-US1 Stick reader. They both show on the desktop as "Unlabeled". I can't rename them. I tried Get Info, locking, unlocking. Also, how can I keep iPhoto from opening each time I mount a stick?