Converting or playing a .264 video file?
Solution 1:
Judging from their extension, these videos probably are "raw" h264 files - they contain just the video data, without any audio and outside of the container.
Because they don't contain any headers, media players are unable to understand their contents - however I believe that you can play such files if you declare that they do contain h264 video !
I can see that you downloaded ffmpeg - you could try to play the video with ffplay using something like
ffplay -f h264 test.264
Other video players have similar options to declare the contents of the file to play. Probably vlc also has such an option however I don't have VLC installed and cannot search for it.
In any case, since the Elecard studio is able to handle these files, they will contain h264 video - you can upload a small one somewhere and I will download and try to play it to tell you my conclusions.
Solution 2:
My brother has the same issue. I am still working out how to convert these files which are full of errors.
To play the files use mplayer
Run the following commands, if one does not work, attempt the other
mplayer -fps 25 filename.264
mplayer -fps 30 filename.264
You have to run mplayer from a DOS/Command window but the effort is worth it as it will "skip" over the errors allowing you to view the files.
Now for a way to convert these files.