But actually, this file format is not entirely popular, partly due to its incompatibility with other media players like iPad, iPhone, Android, QuickTime, PSP, Xbox, Apple TV and more.
They are also noticeably presented on some file sharing platforms such as BitTorrent, eDonkey and Gnutella. RMVB (RealMedia Variable Bitrate) files have been very popular in the distribution of Anime and Chinese television episodes and movies.
