USB Storage bug?
I'm getting some weird issues when trying to copy data to and from both the internal and external SD cards. After mounting, as soon as I try to copy a file to either card, the cards will seem to unmount and the file transfer will fail. I must reboot the phone before anything else will work as it doesn't seem to remount the cards itself. It also prevents the SD card from working in the CWM recovery mode, so I've been having to use Odin to reflash from Cyanofree.
I've just reflashed stock, tested it and it works fine there. SD card works fine in a standard USB card reader. Went back to your latest Cyanofree build (29/04) and the problem persists.
Any ideas? What can I do to help you?