Firecapture QHY5 file problem

[Stardust]

I ran Firecapture with my QHY5L-IIM, it did freeze and had to be restarted a few times.

When I go to play the files, 4 of 14 are fine. The others don't have a text box underneath the file and the error is :-

                           Windows media player encountered a problem while playing the file

I can't open them which is annoying as I din't get much time on the sun between the clouds yesterday. The first one in the list is fine, then the next 4 are duff, then a good couple, quite random. The capture runs and appears to be working and not till playback did I see the problem

Any ideas?? 

[Stardust]

Sorted now by changing a couple of settings and getting stable high frame rates