Tested on a US 1.52 unit.
XMB: Corrupted Data, No crash.
Game Boot / XMB: Corrupted Data, No crash.

I tried X/O X/O X/O in and out of the video to see if maybe by some lucky load it would go through. No luck.
This was done using libmpeg.mpg placed in a PS3 folder on a 4GB memory stick. Also tried with file in Video folder.
No go.

i'll keep an eye out for updates to the files and test them as they become available.
Anyhow on a positive note. Thanks Hacked for discovering something interesting. It's nice to know there are people out there throwing info out there rather then just saying they have it.
Kudos to you!