Recovered video files play back all black

I recorded a program in HD60 on my Kodak Zx1. I watched a few minutes of the recording on a television, then stopped, planning to download it to my computer and edit it later. When I came back, the SD card read empty. I have no idea what happened.

I used Recuva on the SD card, and have come up with a few files, 2 of which appear to be my video - one is about 30 minutes long, the other, ten. But when I play the files,all I see is BLACK. The files are .mov files. I've tried to open the files in several programs, including Quicktime,but if they read at all, the screen comes up, the video is obviously playing ( the timer is moving), but there is nothing but black.

I'm hoping to much to be able to recover and play these files of my daughter singing. Can anyone help me?
 
It may be time to get another video camera. Today's smart phones do a good job taking video shots
 
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