Some mp4 files taken by my cellphone (haier w910 using bravo camera) stopped
playing in my pc, while others do play. I tried with several programs such as vlc, windows mp, classical mp, quicktime, sony vegas.
I have checked with mediainfo and noticed that the bad ones (that do not play) has a tag:
Xtra : WM/MediaClassPrimaryID
while the good ones do not have this tag.
I could not find over the net enough information about such bug, unfortunately.
Can someone help? Is there a recommended way to remove such tag?
I am almost sure that I checked these files earlier in the pc. Is this possible that some software added this tag?
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Can you post up one of the files here to the forum so we can inspect it?
the problem is important, as I do want to keep use this cell phone for taking videos...
It seems that the problem may be either in the file transfer from the camera (using mtp), or in windows 7. All I did with the files were
to rename and copy to another folder.
I checked some of the corrupted files, not yet deleted from the cellphone, and tried again to transfer to pc, rename and move to another folder. And this time no corruption. It seems to be one annoying bug, hard to reproduce.
The repaired file is upside/down, btw, but this is not difficult to fix in video editor.