Camera SD card only has xSD files and DAT files?
 

My son used a classmate her JVC Everio video camera to film the show they were in. They put the camera in the back of the theatre and just let it run.

He got the SD card back and the camera was taken home by his friend. When he looked at the files there were no movie files on the SD card but only xsd files. Also the 128gb card was formated to 20gb.

I hope with all my heart he needs the camera to view the taping and the SD card was just used to store extra files.

Does anybody know what those files mean on the SD card? Many thanks.