en WordPress.com Forums › Support Doesn't recognise video codec Author Posts December 11, 2013 at 9:26 pm #1561379 derfstravelsMember I have been uploading video to the site and never had trouble. I have upgraded to Mavercks on Mac recently. Now when I try to upload video mp4 format I get this message: This video file could not be processed because it does not contain a video track or the video codec is unsupported. Can someone please advise what I need to do to resolve this. Thank you The blog I need help with is derfstravels.com. December 11, 2013 at 9:32 pm #1561493 timethiefMember I tagged this thread for Staff assistance. Please subscribe to it so you are notified when they respond. December 12, 2013 at 1:19 pm #1561633 kardotimMember Could you please try opening the video in QuickTime player and select “Save for Web” from the File menu and check the “Computer” box. The result will be a new movie file, either ending with .m4v or .mp4. Upload this file, and it work properly. Author Posts The topic ‘Doesn't recognise video codec’ is closed to new replies.