Is a multimedia container for playing audio and video in karaoke mode. There are several options for playback, which switch off all of the streams. This format is supported by a few PC players, but is widely used for DVD-players and home theater systems.
Is a media data format created by Apple. Named 'Quicktime' and is opened by a program with the same name. This format contains several tracks, each of which can store audio, video or text. Supported by a large number of encodings and in a single file, each element can use its own codec.