As a projection designer, I spend a lot of time looking at movie files. I don't mean watching movies, but I do a lot of that too. I mean, I spend a lot of time analyzing individual frames and short sequences for details like color mismatches, blockiness, banding, and other artifacts of digital video. At a high enough bitrate these artifacts disappear, but for live playback and cueing we have to compress the video to a format using a specific algorithm called a codec. Compression is ...

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