yrrej
1
HI,
I recently purchased a MBL and moved all of my video to the Shared Videos section of the device.
Unfortunately I had a substantial number of file with the m4v extension ( from Handbrake).
Twonky thinks these files are music and will not serve the video.
In another thread some one suggested that all I had to do was change the extension to .mp4.
I did not want to manually execute a large number of ‘mv’ commands by hand,
After consulting the bash manual I decided to use:
for f in *.m4v ; do mv "$f" "${f/%.m4v/.mp4}" ; done
I ssh’ed to the directory containing .m4v files and executed the above command,
It successfully converted all of the .m4v files to .mp4 files and Twonky will now
serve the videos 
Jerry
3 Likes
Nice to know!! Most of the times just changing the extension doesn’t work due to the encoding but it’s really nice to know it works with Twonky! 
GENERALLY speaking, changing from m4v to mp4 shouldn’t matter.
m4v is apple’s extension for “iPxd” compliant files. m4v is generally **ALWAYS* h.264 and AC3 or AAC audio.
However, going from mp4 to m4v may not work because mp4 is a more generalized container.
*technically*, AC-3 isn’t supported in an mp4 container. It’s considered a “Private Stream.”
That being said, most hardware players treat both formats identically… just not Apple. :)
1 Like
WDTony
4
What device were you trying to serve these files to?
