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Videos greatly support learning in an e-earning setting. It is a rather complex topic though, due to the variety of formats, codecs, containers and combination of operating systems and browsers. We therefore generally recommend to only embed video in the .mp4 format in single pages. MP4 is the mandatory file format for creating a video learning resource.


titleRecommended format

The mp4 container using the H.264 video codec and the mp3 audio codec is widely established and accepted. Current releases of Win IE, Firefox, Chrome and Safari are capable of playing videos encoded in such a way. 

titleDefine: Container

Videos are stored as single file with a specific file extension in so-called containers. This container contains one or more video and audio tracks, each one encoded with a specific codec. A codec is essentially a compression algorithm as well as a description how data is filed. Unfortunately, some file extension are also used for container as well as codec names. Because of this, you can never solely rely on a video label, as it could stand for either the codec, the container or the file extension.