There are some standard codecs that programs like iMovie and iDVD use to encapsulate video content, but sometimes you’ll find that a filmmaker – or someone encoding or “ripping” video material – uses a non-standard codec because it’ll do a better job of compressing, leave less artifacting (boxy visual noise you’ll see in scenes with lots of action and movement) or offer some security features that aren’t normally part of a video file. mov) but is completely random garbage, for all intents and purposes. Problem is, if the video is encoded using a codec that you don’t have, video players can be completely baffled and basically see a file that has a name that makes sense (like. A codec is a protocol whereby the media is encoded and (often) compressed, and there are a ton of them. Welcome to the complex and confusing world of video and audio codecs.
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