Is anot a very popular media container format designed for mobile phones; works with standard CDMA2000. The main difference from other media containers, 3GP, is the lack of support for AAC format audio tracks.
Is a binary stream media container format that combines several codecs of texts, subtitles, audio and video data. It can be used on web pages for video playback. It has a lot to do with the OGG format. Exists support for popular codecs MPEG-4 and MP3.