iTunes will not play any m4a files

Discussion in 'Mac Apps and Mac App Store' started by Sebby, Jan 17, 2014.

  1. Sebby macrumors 6502a

    Joined:
    Dec 20, 2008
    Location:
    London, UK
    #1
    I helped a friend move his iTunes library from an old PowerPC PowerBook to an Intel MacBook Pro. We followed the method as per http://support.apple.com/kb/ht4527 and used an external drive to transfer the library across.

    It all seemed to be fine, but any m4a file will not play. No error, no nothing; they just won't play. They won't open in QuickTime or VLC either. And it's not a case of the files not existing or being in a different place. They are present and correct and iTunes is referring to them correctly.

    It's not an authorisation issue, either; the computer is authorised, plus many of the tracks are not purchases anyway, but rather CDs that were imported into iTunes on the old computer.

    Any ideas? I'm at a total loss!
     
  2. Consultant macrumors G5

    Consultant

    Joined:
    Jun 27, 2007
    #2
    Since you said none of the files will play, maybe it's a permissions problem.

    - Quit iTunes.
    - Go to User/Music/ folder
    - Get info on iTunes folder
    - Set permission of owner to "Read & Write"
    - Apply to enclosed items (might be under the gear button)


     
  3. Sebby thread starter macrumors 6502a

    Joined:
    Dec 20, 2008
    Location:
    London, UK
    #3
    Many thanks for your reply. Unfortunately the permissions are correctly set.
     
  4. Sebby thread starter macrumors 6502a

    Joined:
    Dec 20, 2008
    Location:
    London, UK
  5. ambergarth macrumors newbie

    Joined:
    Mar 16, 2016
    #5

    "Itunes not playing m4a, vob, etc file formats" is a common thing. You can either go through the Apple support guidelines or try another player. I used VlC, but it helped me time to time, so I switched to Elmedia Player. Check it. Maybe this will hepl you.
     

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