MP4 files have no video in Quicktime 7.6.8

[Gaia]

I have by no means had a trouble screening my MP4 sony camera video clips in Quicktime on top of my computer until at the moment. Each and every one of my files so as to once play entirely very well, has no video -- simply sound. I have version 7.6.8 Quicktime downloaded. I have recently updated my graphic driver belief that might be the trouble other than no alter. I'm speculating if this new version is causing the difficulty. Not certain what I require to do. Thank for any suggestion

[Karsten M]

I too have the similar difficulty. The a number of .mov will play, excluding the .mov shot by means of an HD hand held camera are presently as you explain: a black screen in the company of audio, but no video. They will play by means of FLV player however they are choppy as well as slightly distorted.I'm on a Dell using windows XP.Any assist will be to a great extent appreciated.

[Santy]

The individual which be supposed to play it if vlc canot is mpchc. If that does not play it moreover the file have drm as well as desires a purchase license on the way to play or the file may be despoiled. If it’s despoiled you'll enclose to attempt to re-download it thinking it’s still obtainable. If it’s a purchase file that doesn't play correctly you'll require on the way to play it in its official player or else redownload an additional copy straight from the source you purchased it from

[Orrin]

Downloaded Movie by internet but I unable to play movie no sound or else no picture.Windows Media Player encounter a problem at the same time as playing the file. For further help, click Web Help.None of the below mentioned player works.
Media Player Version 3, 6, 0, 59
VLC media player Version 1,1,4,0
Apple Inc. QuickTime version 7.6.8
DivX Player Version 10, 2, 1, 13
Windows Media Player 11