So I was having an issue where PSX/PSP eboots would not respond to the controls (I could adjust volume and use the menu button to get back to the main screen/adjust settings etc but in game nothing responded) So I was trying various versions of PRO to try and fix the issue.. I ended up not being able to transfer anything else to my Pro Duo for some reason so I formatted it - tried B10 Fix - which fixed the PSX game issue.. but then I tried transferring the rest of my stuff back on the card and kept getting errors, and it looked like i had 100GB worth of stuff on my 4GB card lol. Now I can't even format it - PSP and 2 different computers say unable to format, PSP gives me the option to format then says "no memory stick" after attempting... Is the card fried now? Is it something I did by tranferring lots of stuff on/off or was it just the cards time? Sucks I was just trying to prep it to take on holiday tomorrow.. bah.