About the RM file format
RealMedia Video (RM) is a video format from which mp3.now can extract an audio track and convert it to MP3.
The guide and converter lists are generated from the live MP3.now catalog, so every conversion shown here is available.
Why RM files are used
RealMedia Video files combine video, audio, timing and metadata in the .rm format.
On mp3.now, RM is used as a source when you want to extract its audio track into a standalone MP3 file.
What to know about RM
Media container
RM can hold encoded video and one or more audio tracks.
Audio extraction
Conversion to MP3 keeps the selected audio content and removes the video stream.
Codec support
Successful decoding depends on the codecs stored inside the container.
File size
Video sources are usually much larger than the extracted audio result.
How RM conversion works
Converting RM decodes the source audio and encodes it with the destination format's codec and selected quality settings.
Lossy conversion cannot restore detail already removed from the source, so keep the original when quality matters.
mp3.now accepts RM as an input and converts its audio to MP3.
RM compatibility and software support
Playback support for RM depends on the device, browser, container features and codecs inside the file.
MP3 output is broadly supported by phones, computers, browsers, editors and media players.
RM and related formats
When should you use RM?
- Music extraction: Save a song or performance as audio-only MP3.
- Speech and interviews: Extract spoken audio for listening or transcription.
- Editing: Create an audio track for an editor or production workflow.
- Smaller delivery: Remove video data when only the sound is required.
Convert from RM
Use RM as the source.
RM file format FAQ
What is a RM file?
RealMedia Video (RM) is a video format from which mp3.now can extract an audio track and convert it to MP3.
Can MP3.now convert RM files?
mp3.now accepts RM as an input and converts its audio to MP3.
What changes when RM is converted?
Converting RM decodes the source audio and encodes it with the destination format's codec and selected quality settings.
Should I keep the original RM file?
Lossy conversion cannot restore detail already removed from the source, so keep the original when quality matters.