I have been using two transcend 8 GB cards successfully since the latest firmware and subsequent SDHC patch came out. Using the file manager I tried to remove a file and the action failed, saying the device was read only. So, at some point this has gone south. I can still read things from the disk, but just can't make changes. I don't think that I have removed it uncleanly from the PC connection, but I guess it might be possible. Would that render the disk read only? Regardless, is there a way to make this writeable again? I can recreate all the files that are on it, so should I reformat it? If so, I would have to do that in a PC correct?