
The cameras record into AVI file format, and using our "Disk Recovery" software (we've posted about it in 2009) we found the data on the disk. Using a Hex file editor, we decided to try to "fix" the AVI file...
We took a "good" AVI file, and clipped out header information from the good file. The files need to be about the same size...

And it worked! A couple of other tools that worked well were: DivFix, and HxD hex file editor.
The only bummer was that when we actually sent the camera down the fishing line to a salmon, the data was lost to the recovery tool. We tried to skim it off the miniSD disk, but it didn't work.
Oh well - maybe this helps with lost video you have...