- Extension
- .ra
- .mkv
- Format
- Binary
- Binary
- Category
- Audio
- Video
- Developer
- RealNetworks
- Matroska
- Description
- RealPlayer created RA for audio streaming. It makes use of various audio codecs from those that deliver high-fidelity sounds to those that record low bitrate audio data. Radio stations mainly used it for online streaming, but current formats have overthrown it.
- An MKV file is a video container format similar to the .AVI, .ASF, and .MOV formats. It supports several types of audio and video codecs and may include .SRT, .SSA, or .USF (Universal Subtitle Format) subtitles. MKV files also support VobSub subtitles from DVDs.
- MIME Type
- audio/vnd.rn-realaudio
- video/x-matroska
