FCP X: Native vs. Optimize vs. Proxy Media

There’s a lot of confusion about the three different media types in Final Cut Pro X: native, optimized, and proxy.

Native media is the format shot by your camera. For example, AVCHD, H.264, DV, and HDV are all examples of native media formats.

Optimized media is always ProRes 422. When the “Optimize Media” checkbox is checked during import, FCP X transcodes, which is a fancy way of saying it “converts,” your media from its native format into Apple ProRes 422.

Proxy media is always Apple ProRes 422 Proxy. Proxy media creates a reasonably high-quality media file, but at about 1/4 the size of ProRes 422.

When you import media from either a file or camera, you have the ability to optimize it, or create proxy files.

You also have the ability to convert media after you’ve imported the files. Simply select the clips in the Event Browser that you want to transcode and select File > Transcode media.

Either way, here are your options:

What’s “reasonable image quality?” Generally, the higher the bit rate of the media, the better the image quality. For this reason, since ProRes 422 has a much higher bit rate than ProRes Proxy, the image quality is potentially better. This is especially true if you are doing color correction, green-screen keying, or lots of image manipulation. However, if you are simply capturing and editing consumer-grade camera images, without many effects, you may not see any quality difference at all between optimized and proxy media.

Creating proxies or optimized media always makes a copy of your camera source files. Both optimized and proxy media will have better performance than the camera native formats.

You can select one option, both, or none. Depending upon which options you select, you could have up to three copies of your media files stored on your system:

1. Camera native
2. Optimized
3. Proxy

Duplicate media files are not necessarily a bad thing and FCP X will track them properly; however, multiple copies do require more disk space.

RECOMMENDATIONS

Not all camera formats require optimizing. If the Optimize option is grayed out, it means that the camera format is already optimized and would not benefit if converted into ProRes 422. (DV and AVC-Intra are two examples of already-optimized media formats.)

NOTE: For the geeks among us, optimized formats are those that are stored in an I-frame format.

My general recommendation is to always optimize media. Purchasing an extra hard disk will more than pay for itself in the time you save during editing.

SWITCHING BETWEEN FILES

To switch between native, optimized, or proxy files in your Project go to the Final Cut Pro > Preferences > Playback tab.

Click the radio button for Proxy to edit using Proxy files.

Click the radio button for Original/Optimized to edit using anything else.

You can change this setting whenever you want, however, you can’t have a mix of some Proxy and some Optimized files in the same Project at the same time. Proxy and Optimized files are stored in different folders in the same Event folder.

(By the way, I thought whether you selected High Quality or Better Performance in this preference pop-up menu, your output quality will always be the same – high quality. However, see Jason’s comment below.)


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142 Responses to FCP X: Native vs. Optimize vs. Proxy Media

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  1. Giulio says:

    Very Thank you!

  2. EPREditor says:

    In Final Cut X: Can you bring footage in as a Proxy file, to save drive space, and make editing the editing speed faster, and then when you finish your project just re-transcode the proxy footage of only the footage that you used in the project and not the whole event media to a higher Pro Res Format?

    If you are doing a feature or documentary with a lot of footage that was shot in a High Definition format (Red for example), the amount of external drive space you would need would be tremendous if you had to transcode all the footage to the higher level Pro Res formats. In Final Cut 7 you were able to do this. Can you do this in Final Cut X?

    • Larry Jordan says:

      I am not sure that workflow works, and I would be cautious in recommending it.

      Larry

      • Hi Larry,
        EPReditor’s question is the same as mine. I have hours of material for a short 5 minute project, with AVCHD, ProRes, H.264 files. My hope was to transcode everything into ProRes Proxy edit and then use the edited project as a reference to transcode only the used material into ProRes. I was hoping there was a way to “automatically” swap the proxy files for the full resolution ProRes 422 files. Isn’t there a way to consolidate the project creating a new event with just the used files. Wouldn’t this be a step in this theory? thanks, Phil

        • Larry Jordan says:

          Phil:

          It’s a cool idea, but I don’t know any way to do it. FCP X creates proxy files on ingest. I don’t know any way to take a group of edited files and convert them into a higher level format of ProRes.

          Larry

          • advised workflow for long hours shooters :

            1. rename all clips into a new folder (i use adobe bridge for that) …p.c. this step is necesary as fcpx may confuse by creating proxy files which have been same name given from two different camera during shooting by chance
            2. import files with >create proxy media> checked!
            3. edit clips to a movie with >pereferences>use proxy media> selected !!
            4. after fine cut, >File>duplicate project + used clips only to a new event !!!
            5. open new project, chose >pereferences>use original or optimized media> selected !!
            6. select all clips in newly created Event in Event Library and go to File>Transcode Media>Create optimized media
            7. Apply Effects and Color Correction you wish after optimization done in background
            8. For final output: go to Share>Export Media> …with video codec: Current settings> selected

            So keep in mind; right click on a clip in your timeline and chose >Reveal in Finder> to see which version of clip (Original, proxy or high-quality-ProRess=optimized) You are currently using in your project (good to know for output!!)
            _____
            Thanks for everything Larry

  3. A contrary opinion. If your Mac can handle it, I don’t generally recommend transcoding media, at least not H.264 footage. Here’s an article I wrote for macProVideo.com about it:

    http://www.macprovideo.com/hub/final-cut/fcp-x-the-truth-behind-performance-with-optimized-media

    Optimizing media is a safe option, but it takes time and space, and isn’t best for every situation.

  4. Shaun says:

    Larry,

    When you say that optimized media “provides the best possible performance and image quality”, do you mean while editing, the final exported video, or both?

    If I edit in proxy media, does that mean that the final export will also be a proxy file and not the full quality?

    If thats the case, then is there a way to edit with proxy media and then switch it to optimized to get the best export quality?

    Thanks!

    • Larry Jordan says:

      Optimized media provides, in most cases, better performance and quality, than editing native media.

      Proxy files are smaller than optimized files, so if you need to save space, use proxy files.

      Proxy files are always created in addition to ether native or optimized files. To switch between Proxy and Optimized files, click the appropriate radio button in Final Cut Pro > Preferences > Playback tab. All effects and transitions transfer seamlessly.

      Larry

  5. […] FCP X: Native vs. Optimize vs. Proxy Media June 28, 2012 Tower Studios Team Final Cut Pro X, Instructional AVCHD, final cut pro x, Media, Optimize, Video, Videography FCP X: Native vs. Optimize vs. Proxy Media Credit To: http://www.larryjordan.biz/media-in-fcp-x/ […]

  6. Gary says:

    Hi Larry,

    I thought transcoding on import, by selecting the Create Optimized Media checkbox, simply ‘converted’ the imported files to ProRes. However, when I select the clips in the event browser, they appear in the Inspector as H.264 (shot on Canon HDSLR). If I import the transcoded ProRes files from the High Quality Media folder that FCPX created during the previous step, the clips all have the “content created” date of the transcode rather than the shoot. This creates another problem, since I shot the project with multiple cameras and have over 1,700 clips, and would like to organize the event browser by date.

    Thanks in advance if you can help.

    Gary

    • Larry Jordan says:

      Gary:

      OK, I just did a test and here’s what I think is happening.

      When you optimize your media, FCP X uses the optimized media in your editing, but displays all the metadata based on your source clip. So, depending upon preferences, the Timeline will play either Proxy or Optimized media. If you don’t optimize media, the timeline plays the source clips in the camera native format. Regardless of what media is used for playback, the metadata always references the source clip.

      You can test this for yourself by checking the metadata and assuring yourself it points to the source clip.

      Then, right-click a clip in the Timeline and select “Reveal in Finder.” FCP X will display the transcoded clip.

      Larry

  7. Rick says:

    Does “Send to Compressor” on export (“share”) change any of this discussion? Specifically will Send to Compressor” force compressor to go back to the native and re-render all effects?

    I think that in Final Cut 7, “send to compressor” forced compressor to rebuild everything from the original media in the timeline. Now in FCP X we sort of have 3 versions of media in the project (timeline): native, prores, and prores proxy.

    It is worth remembering that anytime there is any spatial filtering, there will be a slight softening of the image in resolution. Even 4.2.0 to 4.2.2 conversation, I think, requires spatial filtering. So, if you go 4.2.0 to 4.2.2 to any compressed output, you have applied a spatial filter at least twice. If you can avoid using any intermediate spacial filtering when producing the final output, at least in theory, you should have a better output. Is the difference observable? Maybe not, and it certainly can increase export time to your final output. Of course, if your final delivered product is ProRes 4.2.2, then Compressor does not matter.

    Rick

  8. Sonny says:

    Hi Guys

    One quick question.
    Can I import in PROXY and edit my FILM in PROXY
    AND when done editing the project optimize the final video and then export it.

    Or do I have to optimize the whole source file at the end and not just the project which I edited in PROXY.

    Sonny

    • Larry Jordan says:

      Sonny:

      yes and no.

      Can you import media in Proxy format? Yes.

      Can you edit your media in Proxy format? Yes.

      When the edit is done, can you go back to the source media and optimize it in high-quality? No. Instead, what you would do is change the preference from Proxy to Native and FCP will connect to your camera source files for final output. Since editing is complete, there is no reason to create optimized media for output, just output the original camera files.

      Larry

  9. Abed Loutfi says:

    Hello Larry and everyone.

    I got myself into a some trouble earlier this day.

    I have been editing some high quality footage(1920 x 1080) for my documentary project on a MAC OSX that originally had 1 TB of free space that a student organization offered me access to.

    My rushes alone, after putting them through clipwrap to convert them, were around 80 GB. Given that I was the only one editing on this station, I went with original media. I got a call this morning from the manager of the station saying that I’m using too much space, now that someone else is also editing here. Not knowing what he meant, I came and checked all the project files and the combination of the project and event files were at 257 GB!

    I know this might be normal given the file sizes I started with but how can they become so big?

    The files were as follows:

    FC project files> render files = 42 GB

    FC events> Transcoded Media > HQ media = 217 GB

    Is this normal? Its just a 40 minute project and around 3 hours of rushes.

    So basically I have three large files, the one with the original media, the HQ transcoded media file, and the project Render Files.

    I’m almost done with my project and I was wondering if there are any files I can harmlessly delete without having to go for proxy media.

    I hope I made sense and I hope I can get some help or at least an overview of how to manage these files better for the future.

    It is worth mentioning that when I first read this post a few months ago I tried the proxy media but then switched back to original/optimized media in the playback settings. I think this has created some large files as well.

    System specs:

    MAC OSX version 10.7.4
    Processor: 3.1 GHz Intel Core i5
    Memory: 4GB 1333 MHz DDR3

    Thank you so much in advance and I hope I can manage this as soon as possible.

    • That’s normal, because you’ve chosen to Optimize your media. Optimizing media will take about triple the original unoptimized media size. Good news is that you have a few options:

      1. Don’t optimize. Depending on the Mac, this may not be much of a speed hit at all. Or…

      2. When the project is complete, Share > Export Media for a full, high quality result, then find your Event in the Finder, and delete the High Quality Media folder. FCP X will happily use the non-optimized footage should you need to go back to this project, and you can re-optimize if needed. Or…

      3. Buy more storage. 1TB simply isn’t enough for a shared edit station set to optimize media, so grab a big cheap external HD and move your projects/events to that. It’ll work fine.

      • Abed Loutfi says:

        Thank you so much for your help!

        Although my project is somewhat done but every now and then I find myself tweaking some settings here and there.

        I have a couple of follow up questions, if its ok.

        First, if I want to go back to using native files without optimizing, what files can I delete? I need to know which file each option creates so I’d know whats safe to take away.

        Second, and this is probably a bigger question, as I finalize my project and want to preserve it for future edits, what files do I save and what files are recreated upon relaunch? Given that my project is now taking up around 600 GB, do I have to save all files? That is aside from the original rushes.

        Once more, thank you so much for your help. I’m new to Apple and Final Cut having used Premiere Pro on PC for the past two years. I just need to ground the formats and saving basics.

        Have a great week,
        Abed

        • In an Event, the High Quality Media folder contains transcoded footage and should be safe to delete. In a Project, I’d recommend keeping a fully rendered ProRes version of the edit for archiving. To save space, the easiest method is to copy only necessary files when archiving.

          Connect your archive drive, then right-click and Duplicate your Project. In the Duplicate Project dialog, choose the archive drive at the top. Then, choose Duplicate Project and Used Clips only from the options below. That way, you’ll only keep the clips you have used — others will *not* be copied. Don’t check the “Include Render Files” and they can be re-created later (assuming FCP X renders the same way in the future).

  10. Paul says:

    After reading through all these great comments, I think I know the answers to my questions but would appreciate confirmation.
    Background: I shoot videos of my kids with a AVCHD camera (Sony) that saves it to memory. I only want the raw footage available for some day when I will get around to creating projects/movies. I don’t want to store and backup optimized video due to its size.

    1. Import: There is no need or advantage to select optimize or proxy media when I import (given that I have no intention of working on the files any times soon.)
    2. Since I already imported some videos and selected optimize, I can simply go into Finder and delete the Transcoded Media directory. As long as “original media” directory and contents are left intact, I will always be able to create optimized or proxy media when I need it (via File>”transcode media” feature. The advantage of optimizing later rather than at import is that I am not storing and backing up optimized video (which is huge).
    Can someone confirm the above statements are accurate?
    Thanks
    Paul

    • In my opinion, the answers are:

      1. Yes. There’s no need to optimize on import, especially if you won’t edit for a while. When you do edit, see what performance is like on your Mac without optimizing — maybe you won’t need to at all.

      2. Yes, you should be able to delete the Transcoded Media directory, so long as FCP X is closed.

      Best wishes,
      Iain.

      • Larry Jordan says:

        Paul:

        Well, yes…

        However, if you are not going to edit the material, don’t bother to import it into FCP. Simply copy the AVCHD cards to your hard disk – each to its own folder – make backups as necessary.

        You can review the footage in FCP X using Import from Camera, without actually importing it.

        Then, some years into the future, you’ll be able to import the footage because it is still stored in its camera native format in its own folder on your hard disk.

        Larry

        • Paul says:

          Larry and Lain, Thanks for the responses. Both very helpful.
          Larry you suggested just copying the AVCHD file instead of importing.
          Is there an advantage to that? It seems just as easy for me to import it. Is there a disadvantage other than the time it takes to import?
          Paul

          • Larry Jordan says:

            Paul:

            I’m suggesting that you copy the card to your hard disk first, to make a backup, then ingest from that copy. That way, you have a master to go back to, if you need it. It doesn’t make any difference in terms of quality, though ingesting from the hard disk will be faster than ingesting from the card, due to transfer speed differences.

            Larry

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