Important: Adobe Warns QuickTime 7 Codecs No Longer Supported

Posted on by Larry

We have known for a while that Apple is moving its operating system to support only 64-bit applications. But, a little-known aspect to this that affects filmmakers are that 32-bit media codecs will also stop working.

Not today, but “soon.” Which means that if you have media stored in one of these legacy codecs, you need to think about converting it into something more current.

Earlier this week, Adobe formally announced that it “will no longer support legacy QuickTime 7 era formats and codecs starting from the following product versions:

Affected codecs include:

Read the complete statement from Adobe here.

In my conversations with the Premiere team at Adobe, I learned that converting older files into Apple ProRes 422 (on the Mac) and/or GoPro Cineform (on Windows) would be excellent codecs that protect your assets into the future. While no codec lasts forever, ProRes and Cineform are already 64-bit and actively supported by Apple, GoPro and other developers.

Adobe continues: “Professional codecs typically found in QuickTime movie files, such as ProRes, DNxHD, and Animation, are not affected by this change.”

Keep in mind, it is MUCH easier to convert older codecs now – while the operating system and applications support them, than to wait.

I have contacted Apple to see if other codecs are affected or if their current software will continue to support QuickTime 7 codecs. If I learn more, I’ll update this article.

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6 Responses to Important: Adobe Warns QuickTime 7 Codecs No Longer Supported

  1. Thanks for reporting this, Larry. The Adobe announcement reads as highly technical to me — your report is a little simpler — but I am still struggling with the real-world meaning of these pronouncements. I have PR CC timelines in CC “2013” (the first CC) and CC 2014. I _think_ the timelines exist in ProRes 422. I _think_ this means they will not be “obsoleted” by Apple. I was also working in FCP7. Can you mention any real-world types or descriptions of files that may be made inaccessible by Apple? Many thanks.

    • Larry says:


      Premiere and FCP X projects/libraries are safe. (FCP 7, however, will not work at all. Anything you need to save needs to be exported as an XML file using FCP 7.

      ProRes files are safe.

      This warning means early codecs – such as those listed in the article – will not work. I’ve asked Apple for a more complete list of QuickTime codecs that are in jeopardy, but have not had a response yet.


  2. Gosset says:

    Hi Larry,
    You says “Cineform are already 64-bit and actively supported by Apple” but on this page (, Apple says cineform is a “legacy CODEC”… i thought legacy are only 32 bit codec ??? Have you an explanation ?

    • Larry says:


      VERY interesting. When I wrote this article, Apple had not published their KnowledgeBase article. I’ve been asking Apple for this list for the last year. This is the first time they labeled GoPro Cineform and the DNx family from Avid as “legacy.”

      When I chatted with the GoPro Cineform folks a while back, they told me it was 64-bit. I’ll do more homework to see what I can learn.



  3. Michele Kinrade says:

    Hi Larry,
    I look forward to seeing which codec you suggest we use on PCs moving ahead. At your suggestion we have been using Cineform for a while now. Should we switch and if so what should we use?

    I certainly prefer an option which will let us go cross platform when needed. Is this just forcing a bigger divide between Apple and Windows?


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