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Questions about the Common File Format

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    Questions about the Common File Format

    I was reading in the UV Demystified guide about the CFF, and I found something interesting about aspect ratios. It said the CFF only supported 1.33:1 and 1.78:1 aspect ratios! Does that mean that 2.351 films are going to be cropped to fit this ratio, or just that there will be black bars on the tops and bottoms of the file? I hope it's not cropped, because I have invested a lot into UV, and I was under the impression that the DFF files would be OAR. Until I get an answer to this question, I don't think I can make any more purchases!

    Also, does anyone know what kind of software will support CFF files? Plex said they don't support DRM yet. What about WMP, XBMC, VLC, or DLNA? If it doesn't I can't see it gaining much support! Most people aren't going to want to use the vudu to go app because it has an interface they don't like. Also, will we download the files from the Streaming Provider, or directly from uvvu.com?

    #2
    Re: Questions about the Common File Format

    Originally posted by echopulse View Post
    I was reading in the UV Demystified guide about the CFF, and I found something interesting about aspect ratios. It said the CFF only supported 1.33:1 and 1.78:1 aspect ratios! Does that mean that 2.351 films are going to be cropped to fit this ratio, or just that there will be black bars on the tops and bottoms of the file? I hope it's not cropped, because I have invested a lot into UV, and I was under the impression that the DFF files would be OAR. Until I get an answer to this question, I don't think I can make any more purchases!
    Definitely the latter. 640/480 = 1.33:1 and 1920/1080 = 1.78:1. Sounds like they are just talking encoding ratios. 1080p video is 1920x1080 with letterboxing for 2.35:1 movies. Of course, it's up to the studios to get this right, but assuming they do 2.35:1 will definitely be possible (and hopefully the norm when OAR).

    Also, does anyone know what kind of software will support CFF files? Plex said they don't support DRM yet. What about WMP, XBMC, VLC, or DLNA? If it doesn't I can't see it gaining much support! Most people aren't going to want to use the vudu to go app because it has an interface they don't like. Also, will we download the files from the Streaming Provider, or directly from uvvu.com?
    The CFF format itself is an MPEG4-based standard and supports several DRM schemes. (To be pedantic: Adobe Access, Google Widevine, MS Playready, OMA, and Merlin). But players will have to support/license a DRM to play CFF. Obviously I can't say for sure but I'd imagine over time there will be more and more players supporting CFF since it has a lot of industry support. And per UV the CFF file will be available from the "retailer" (i.e. wherever you bought or redeemed the UV title). So if you bought it from VUDU you will be able to download from VUDU when it's available, if you bought from somewhere else it's up to them... so IMO buy from whoever you trust most to get it right

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      #3
      Re: Questions about the Common File Format

      Originally posted by echopulse View Post
      Also, does anyone know what kind of software will support CFF files? Plex said they don't support DRM yet. What about WMP, XBMC, VLC, or DLNA? If it doesn't I can't see it gaining much support! Most people aren't going to want to use the vudu to go app because it has an interface they don't like. Also, will we download the files from the Streaming Provider, or directly from uvvu.com?
      I expect WMP to be a CFF player, but won't hold my breath for XBMC due to the open-source nature. DLNA serving of the files should be supported, it will be up to the playing device or program to take care of license-checking/DRM. I expect that to be a one-time internet "ping", if you will, to retrieve the license without subsequent connection requirement.

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        #4
        Re: Questions about the Common File Format

        I was just thinking about a recent news article which stated that DIVX was approved as a UV DRM for the CFF. Does that mean that CFF files will be able to be played on blu-ray players that can play DIVX files from a USB-connected hard drive? If that is the case, then it is a huge step forward for UV! Many People won't have to buy new players!

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          #5
          Re: Questions about the Common File Format

          Originally posted by echopulse View Post
          I was just thinking about a recent news article which stated that DIVX was approved as a UV DRM for the CFF. Does that mean that CFF files will be able to be played on blu-ray players that can play DIVX files from a USB-connected hard drive? If that is the case, then it is a huge step forward for UV! Many People won't have to buy new players!
          The 'player' will have to support CFF, but the USB connected drive should work fine, or any other connection type from home network to hopefully FTP or HTTP so you can stream your movies to yourself anywhere.

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