Thank you for the suggestion Raj - the problem is that I am unable to find most of the files containing captured images and some of the ones I can find, I cannot open for no stated reason.
Re the project I was working on (and lost), I spent a few more hours editing the captured clips all over again and have now completed the job and will sit back content (but still frustrated with what happened).
I have a hefty file somewhere with clips from Mexico taken a year or so ago, but can't find them either.......I'll just have to keep plodding along.
Thanks again.