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i've been asked to make a 5 sec video for a street advertising screen 4*2 meters (11339 * 5669 pixels) but that produced a very large file size and i really need to reduce it when i render as AVI file size was 22 GB!!! and with quicktime it was 3 GB other AE's codecs resize the video's dimensions or give me settings miss match so my questions is how can i reduce file size and keep the dimensions and quality?

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  • Have you seen if this has been asked on Video Production?
    – user9447
    Dec 22, 2016 at 15:11
  • Have you determined the "virtual pixel size" of the the screen? In many cases the physical makeup of the screen is not the desired setup of the files to be displayed on it.
    – Yorik
    Dec 22, 2016 at 20:03

2 Answers 2

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It almost certainly doesn't need to be that big. You're recording detail that no one is going to see unless they have their nose to the screen. Especially with a moving image. In an outdoor ad in particular, they'll be glancing at it as they walk by.

Ask what format the advertiser expects. I wouldn't deliver anything more than 4K (4000px on the longest side), and even that's huge.

As @Confused mentioned, you probably want a more efficient codec, like H.264 for a smaller file size. MPEG Streamclip works, but if you have a recent version of after effects, you have Adobe Media Encoder, which is fast and works directly from After Effects.

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Your Quicktime file, try to export it from MPEG Streamclip with H264, at 50% quality, with these settings:

enter image description here

MPEG Streamclip is free, and worth a million times that ;)

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