RealMedia .rm
A multimedia container used for older RealPlayer video and audio.
Output uses RV10 video and AC3 audio. Protected streams are not supported.
RM file format guideRM to M4V converter
Convert RealMedia (.rm) to M4V for free. Choose files, review the available settings and download your results. No account needed.
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M4V .m4v
An MPEG-4 video container used by Apple software. Unprotected M4V files are closely related to MP4 and can contain H.264 video and AAC audio.
DRM-protected purchases are not supported. Output uses an MP4 container with the M4V extension.
M4V file format guideHow to convert RM to M4V
- Select RM files from your device or drag them into the converter.
- Check the M4V output. Open conversion settings if you want to make adjustments.
- Convert, compare the original and result, then download your files.
Quality, compatibility and file limits
Trim a clip, resize the frame, or adjust playback speed before export. Video conversion re-encodes supported streams; subtitles, extra audio tracks, and container attachments are not preserved. Audio output requires an audio track in the input.
Processing uses your device when possible and our servers when required. Browser files are limited to 256 MB each; server conversions to 64 MB; browser spreadsheets to 32 MB. Previews show supported content and do not guarantee identical rendering in every application.