Hey, I have used my Powerbook G4 (15'' 1GB DDR2 & 1.67Ghz) for about two weeks now and it has worked like a charm, I can have presentations with it in Open Office, I can surf the web (takes about 5-6 secs to open a website) and I can also play around in Photoshop and Garageband, great stuff! One thing I couldn't do, and that I really need to do is to import files to my PowerPC and then placing them on a external HDD. The external HDD part is no problem as my pbook sucessfully reads it. However, if i plug in my GoPro through the USB, nothing happens on the computer. Do i need to format the micro-sd as a mac-disc? Will the MicroSD still be usable in the gopro if i format it as a mac-disk? Sorry for a really dizzy description, i'm in a panic as i need this for work in two weeks. Thanks.