10 Replies Latest reply: Mar 7, 2008 5:03 PM by thealexness
thealexness Level 1 (70 points)
When I try to open an MPEG-4 Movie with QuickTime, a message comes up that reads The movie could not be opened. An invalid public movie atom was found in the movie. I took a screen shot here: http://picasaweb.google.com/thealexness/AppleDiscussions/photo#51580944296719376 34

Anyone know what this means?

MacBook & 1st Gen. iPod Nano & 8G iPhone, Mac OS X (10.5), 2.16 GHz Intel Core 2 Duo, 1GB of DDR2 SDRAM, 160 GB 5400-rpm hard drive
  • Derek Dick Level 1 (0 points)
    anybody? i've google'd this a bit. installed quick time codecs, changed file extensions and a whole bunch of other things.

    can't seem to play mp4 files. argh. a very confusing error message. i'm assuming it's a missing codec but can't figure it out.
  • hvxuser Level 1 (35 points)
    Apparantly its all down to QT 7.4 they for some reason changed the 'Null' value from '0' to '-1' which ends up giving the Public atom error. I would assume that the update will fix it but with Apple... who knows!

    HVXuser....
  • thealexness Level 1 (70 points)
    so at this moment there is no solution...:(
  • hvxuser Level 1 (35 points)
    To my knowledge 'No' and judging by Apple's apparent total silence on the subject I guess they don't give a toss either so don't hold your breath :(((((

    Hvxuser....
  • buge Level 1 (0 points)
    I pulled it off an ftp site via finder and had the problem so...

    1) I pulled it off the ftp site via my windows virtual machine
    2) I moved it to my mac partition via windows virtual machine
    3) Opened it in QT with no problem
    4) Swore extensively

    http://discussions.apple.com/thread.jspa?messageID=5778868
  • thealexness Level 1 (70 points)
    I am sorry, but I am not a real "techy" type of guy and I really didn't understand the soulution (if there was one) from the link you provided. Can you please give me a more simplified step-by-step solution?

    Thanks again!

    -thealexness
  • nytc Level 1 (0 points)
    I pulled it off an ftp site via finder and had the problem so...

    1) I pulled it off the ftp site via my windows virtual machine
    --> FTP site is a file transfer site, Windows Virtual Machine is a program that you can use to run windows on your computer (not the same as BootCamp).
    2) I moved it to my mac partition via windows virtual machine
    --> Downloaded the file from the FTP site onto their virtual machine, then moved it onto their Mac, I don't know which way.
    3) Opened it in QT with no problem
    --> Looks like that solved the problem.

    I'm got the same problem and don't have virtual Windows, but I'm going to try using my friend's Windows and see if that works.
  • thealexness Level 1 (70 points)
    But the file that receives that error message has never been on a Windows machine, I burned the movie from a DVD right onto my Mac, no PC involved...what's up with that?
  • DigiDude Level 1 (5 points)
    This problem has plagued several files of mine since last year after I updated to AT 7.3...and then didn't get fixed in 7.4...I finally really needed those files to open and it became critical to solve the problem. My salvation came from a handy utility that fixes the bad null condition causing the problem, figured I'd save anyone with similar problem the extensive time it took to find this solution:

    http://www.imagineproducts.com/macfaq.htm#QuickTime
  • thealexness Level 1 (70 points)
    Thanks for the help, but I have QuickTime 7.4.1 (14), so when I go to "fix" the file. I can't because it is grayed out. Any other solutions?

    Thanks anyways!

    -thealexness