Unsupported file system.

[hedrick00]

I changed the name of a video on my Droid Razr M and then it changed the file and its a unsupported file and no app will support it. All I did was edit the name and its still under my video files and all just cant open anything about it. Thanks

 

[SiempreTuna]

You probably removed or amended the file suffix (the bit after the dot in the file name). Rename the file again, this time making sure you add the .mp4 (or whatever is appropriate for the original file type - it's probably the same as your other video files).