I have this exact problem too. If you open the file with a binary editor or even wordpad, and compare it to an flv you know works, you can see it looks similar, but there is extra info in the @@@ one. I have tried cutting bits out of the @@@ files header and pasting in header info from the other, but, I can only get it to now recognise the size and time info contained in my @@@ file.. but it still does not play

any help would be great

a url to test with free videos is edit:
I emailed the makers of flvrecorder with the above url and description of the problem and they replied saying..
So I guess its just wait and see... unless anyone else has another solution