error -2041 an invalid sample descripton was found in this movie

I have mobile phone Motorola A1000 and over the last year or so have loaded several hunderd videos, all .mp4 file extensions. All worked well until downloaded QT7.2 and got the -2041 error message. Have found via another forum that by replacing .mp4 with .3gp vids can again be viewed. Is there a way to replace all affected files in one sweep rather than one by one, or can Apple say if they'll provide a fix for the problem created by them?

I have the same problem things like this do my head in, the mpeg-4 files from my phone played OK in quicktime and itunes, on both my Mac and and pc until, it upgraded to 7.2 automatically. I can now only play them with Windows, I can't play them at all on my mac, Thanks for your time and anticpated help, Neil

I'm havine exactly the same problem as the others, any fixes?

Any thought on this problem yet? Even new downloads from my phone will not play

hi, i have exactly the same phone the smsung e900! it use to work it has just all of a sudden started comin up with the error 2041!! any help would be really useful!!! thanks x

To get rid of "error -2041 an invalid sample description was found in the movie", simply change/rename the file extension from .mp4 to .3gp.

I haven't changed the file extension yet but I wanted to note that I had the same issue. Video was from a sony erricsson p900 phone.