3 Replies Latest reply: Aug 27, 2010 4:08 PM by Kyle Gascho
Kyle Gascho Level 1 (5 points)
We're running in an environment that requires QT 7.3 and Tiger OS. But we keep getting videos from people with this JVT/AVC Coding Codec, and they don't play - don't even open in Quicktime. We have to open them on a system with a newer Quicktime and reconvert them before we can view them on the QT 7.3 systems...

What is this new codec and why is it not backwards compatible? Is there a place to get the codec for older systems?

MacPro 2 x 2.66 Dual Core Xeon, Mac OS X (10.5.8), IT Professional - Every Mac Under the Sun
  • Klaus1 Level 8 (47,745 points)
    We're running in an environment that requires QT 7.3 and Tiger OS

    Does it make commercial sense to hang on to an operating system that is two generations old?

    We have to open them on a system with a newer Quicktime and reconvert them before we can view them on the QT 7.3 systems...

    That seems to answer my question!

    What is this new codec

    Not that new - it's from 2003!

    More information here:

    http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC

    And as for the future:

    Apple-supported H.264 standard for HTML5 video on the web:

    http://www.appleinsider.com/articles/10/08/26/applesupported_h_264_standard_gains_free_license_for_internet_videouse.html
  • Kyle Gascho Level 1 (5 points)
    If it's old - from 2003, why has it just started surfacing in the last couple months. I've seen just about every codec come through here and am baffled where this "JVT/AVC Coding" is coming from. Would it be a specific program that is saving the h.264 in this way?

    I get that this is an H.264 codec - at least that's what I'm reading into your reply... just wondering where this specific codec is from and if there is a way/application that can read it on Tiger...
  • Kyle Gascho Level 1 (5 points)
    FYI

    In playing around with VLC Player (Which can read it on Tiger, but cannot reconvert) and MPEG Streamclip (Which cannot read it on Tiger) I found a simple solution and may have answered my own question.

    If I change the extension of the file from .mov to .m4v, the QT loads up in Quicktime and I can play back just fine.