RMVB file format
| Extension | .rmvb |
| Category | video |
| Programs | VLC Media Player |
| Main program | RealPlayer |
| Description | .rmvb (RealMedia Variable Bitrate) The .rmvb format is a variable bitrate extension of the RealMedia multimedia container format developed by RealNetworks. RMVB files are typically used for distributing video content over the internet. They are popular due to their ability to compress lengthy video files into relatively small sizes while maintaining high quality. However, RMVB files require specific players like RealPlayer or other software that supports the RealMedia codec, which limits their compatibility compared to more universal video formats. |
| Technical details | The `.rmvb` (RealMedia Variable Bitrate) format is a multimedia container developed by RealNetworks with the following characteristics: - Variable Bitrate Encoding: Utilizes VBR to efficiently encode video, allocating higher bitrates for complex segments and lower bitrates for simpler ones. - Compression: Utilizes RealNetworks' proprietary compression technology; RealVideo codec for video and RealAudio for audio. - Quality: Provides good video quality at lower bitrates, making it ideal for streaming or downloading on limited bandwidth or storage. - File Size: VBR results in smaller files compared to CBR at similar quality levels. - Support and Compatibility: Primarily supported by RealPlayer, with limited compatibility with other players unless additional codecs or format conversion is used. - Resolution Support: Supports both SD and HD video resolutions. - Streaming Capability: Optimized for streaming but typically used for local playback as well. - Audio Support: Supports various audio codecs, most commonly RealAudio. - Metadata: Can include titles, author information, and copyright details. - DRM Support: Capable of incorporating DRM protection. - Popularity: Was popular for online video sharing, especially in the early 2000s, but has declined in favor of more open formats like MPEG-4 and H.264. - Platform Dependency: Tightly integrated with RealNetworks' software, limiting broader adoption. `.rmvb`, known for its efficient compression and streaming capabilities, has experienced decreasing usage with the rise of more versatile and widely supported formats. |
| MIME type | application/vnd.rn-realmedia-vbr |