RealMedia
Writableaudio
This is an outline record only, and requires further details, research or authentication to provide information that will enable users to further understand the format and to assess digital preservation risks associated with it if appropriate. If you are able to help by supplying any additional information concerning this entry, please return to the main PRONOM page and select ‘Add an Entry’.
Identify it
| Extensions | .rm.ra.rma.ram.rv.rmvb |
|---|---|
| MIME types | application/vnd.rn-realmedia |
| Signatures | 2e524d46000000 at byte 0 (RealMedia) |
| PRONOM | x-fmt/190fmt/404 |
| Wikidata | Q1075962 |
Not sure your file is this? Identify it from its first bytes, in your browser.
Open it
- FFmpegOpen source
- ExifToolOpen source
- Q3898244Open source
- VLC media playerOpen source
- xineOpen source
Convert it
| To | With | Fidelity | Command and losses |
|---|---|---|---|
| FLAC (Free Lossless Audio Codec) 1.2.1 | FFmpeg | Lossless | ffmpeg -i in.rm out.flacLossless for decoded audio; a lossy source stays as degraded as it was. WAV may reduce bit depth or drop metadata. |
| Waveform Audio | FFmpeg | Lossless | ffmpeg -i in.rm out.wavLossless for decoded audio; a lossy source stays as degraded as it was. WAV may reduce bit depth or drop metadata. |
| Matroska 1-4 | FFmpeg | Lossy | ffmpeg -i in.rm out.mkvRe-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container. |
| MPEG 1/2 Audio Layer 3 | FFmpeg | Lossy | ffmpeg -i in.rm out.mp3Lossy re-encoding. |
| MPEG-4 Part 14 | FFmpeg | Lossy | ffmpeg -i in.rm out.mp4Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container. |
| Ogg | FFmpeg | Lossy | ffmpeg -i in.rm out.oggLossy re-encoding. |
| WebM | FFmpeg | Lossy | ffmpeg -i in.rm out.webmRe-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container. |
Sources
From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.