Fixing a *corrupt* mov/H.264 video

[urymf]

Hi,
I have received an H.264 video contained in Apple's MOV format. It refuses to be played in any player (quicktime/VLC/WMP/VirtualDub) other than a *special* version of VLC with which it came. I suspect it was done intentionally by modifying the container's header, but I can't be really sure. Installing CCCP, K-Lite or ffdshow didn't make any difference.
This is what gpost makes of the file:

Any idea how I can 'fix'/convert the file so it's playable in normal players? If any more information is required, please let me know.
Thanks,
Ury

[k.]

Silly question but, did you try converting it with VLC?

[urymf]

Why silly?
If you're referring to the "Convert/Save" feature, yes I did (using the "convert" option). Other than the fact that it took 3.5 hours (as the video is 3.5 hours long), the output video is all messed up (as if there are no key frames). Is there another conversion method in VLC?
Thanks,
Ury

[k.]

Instead of converting you can try changing just the container by creating a new profile.

[urymf]

Thanks k,
Can you please explain how to do that?
Ury

[k.]

When you're about to convert the file click the "Create a new profile" button, choose mp4/mov or mkv as the container and under the "Video/Audio codec" tabs select "Keep original video/audio track"

[urymf]

Thanks k.
I tried it but the results are the same: the video is all distorted in WMP (which crashes upon seeking) and quicktime player can't open the file. Any more ideas?
Ury