I have seen a number of reports about pictures and music disappearing from their sd card and until now I never seen it happen but today I had a number of photos came up missing and I noticed when it happened that may be the reason for this. This appears to happened after I mounted my device as a Mass Storage device and computer reported errors on the card and wanted to scan the drive and I allowed the scan and right after this happened the images came up missing. I have tried to identify the location that the check disk normally place files when they are moved do to errors but I havent had no luck yet but its not a issue because I backup my card regularly.