Finder reboots on play .M4V files

I’m afraid…

I’ve loaded a m4v file into my iTunes.
So I’ve synchronize my aTV and from standard menù Film play the movie but the screen was black and after few seconds the Finder reboot!

The video is 88 minutes long and 778,7 MB size, the codec is H.264, total bit rate 1227 and resolution is 998x552.

aTV version is 3.0.1
aTV Flash version is 4.0.1
Video resolution is set to 1080p HD (same problem with different less resolution)

Please anyone can help me to check what’s wrong?

You may try toggling the ‘Apple H.264’ option in the Maintenance > Settings menu.