Cross-X on 08 November 2010
You can only save certain save files onto USBs.
Like I can back up Final Fantasy XIII, God of War III, Borderlands save files onto a USB but I can't back up my Dragon Age, Heavy Rain, Street Fighter save files.
You pretty much have to manually check whether to see which save files are able to be saved onto a USB.
Only other way to fully back them all up and transfer is the Data Transfer.
