• Compression Techniques

  Is IMX30 a better source/master for compressing/transcoding vs uncompressed AVI/Quicktime?

  Posted by Adrian Tecson on September 23, 2014 at 4:57 pm

  Hi, I posted this question on the Premiere Pro forum, and I was hoping to get the opinion of the people in the compression forum. See, I just came across this requirement from a digital delivery service for TVCs. They ask for an IMX30 to be uploaded on to their cloud, which then gets recompressed/transcoded to different file formats such as DVCPro50, DV25, IMX50, etc, and sometimes even get dubbed onto a BetacamSP tape.

  I’m sort of questioning this process as I’ve always believed that starting from the best source, such as an uncompressed file, is always better than starting with a lossy codec such as IMX30.

  Here’s a link to the complete article:

  https://www.groupimd.com/en/philippines/why-imd/news/why-imx-files-are-better-than-uncompressed-for-the-philippines-advertising-

  Am I right in thinking this article is more of a marketing move rather than an attempt to be technicality accurate and transparent? Would appreciate inputs. Thanks

  Craig Seeman replied 11 years, 7 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Craig Seeman

  September 23, 2014 at 6:02 pm

  Those are all older standard def formats and not great quality by modern standards.

  Is this for TV /Cable (not public access)?

  Common delivery has been MPEG2 Program or Transport Streams.
  Sone now accept AppleProRes and DNxHD (I believe) if you have the bandwidth.

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