Hi Laurence and welcome to the Q&A Board,
I recently lost over 500 mb of images and video. I first tried a free photo rescue program, but it only recovers images (eg. jpeg, tiff). I then tried Photo Rescue and recovered ALL my images plus seven video files. Two videos were corrupted but the other five are perfect. Unfortunately, it is not free.
Anyway, you can learn more about it here:
http://www.digicamhelp.com/digital-photo-recovery-and-rescue/index.htmDo a net search for Photo (or Video) recovery, and see what you come up with.
I was trying to delete a single movie file, the camera asked me if I wanted to delete "All Frames" and I stupidly thought that meant all the frames from that movie, clicked yes, felt sick to my stomach as it took 3 or 4 minutes to comply
I know the sinking stomach feeling. To be honest, though, I don't think you were stupid. The one who was stupid was the programmer who didn't use easily understood terminology! I would have understood "All Frames" to mean exactly as you did.
a .MOV file AND a .THM file with the same filename,
I've recently been told that the .thm file is used to give a visual picture of a video if you play it back on a television.
Does anyone know how to restore my video files? I don't want to spend $30 or $40 for software,
Why not see if a friend has an image recovery program. or maybe a local camera shop can help you out.
Is there a utility out there that can take a folder full of photos and convert their creation dates to the dates specified in the EXIF data?
Try the free utility called Irfanview. www.irfanview.com
Hopefully you'll recover your videos; if so, let us know what utility was used.
Alaska is awesome, isn't it!