Error video... Sound is perfect...

Hi I have a problem with Dolphin 7 RC .... I tried to upload audio files and everything is perfect .... I try to upload video files .. Error file not found ... : (Help me please??
I checked the Flash application ... and it all seems ok ...

ffmpeg file is set as 777 ...... wait for your reply THANKS THANKS AND THANKS ..
the site
myseeyou.com / myseeyou

I think you've set up this way ... tell me if it is correct minuti5 Hours * * * * cd / home / danilo / public_html / periodic, / usr / local / bin / php-q cron.php ..... If the audio file is fine and the video can not always depend from cron!?