F19- Totem doesn't play a film to the end

[antonio montagnani]

I recorded a bike-ride with a Go-Pro action camera, then I downloaded 
the Mp4 to my laptop: Totem starts playing it fine but after 5 minutes 
stops playing.
Same file is played fine by VLC. Format is Mp4

Any idea??
-- 
Antonio M
Skype: amontag52

Linux Fedora F19(Schroedinger's cat) on Acer 5720

http://lugsaronno.altervista.org
http://www.campingmonterosa.com