How to convert M4V to RM
To convert M4V to RM, upload your M4V file, choose RM as the output format and press Convert. The finished RM file is ready to save to your phone or computer in seconds, free, with no watermark and no sign-up. Your file is deleted from our server about 30 minutes after the conversion.
This free online converter turns M4V videos into RM files in your browser, with no software to install and no watermark. When the video and audio inside your M4V file can be placed in RM as they are, the streams are copied without re-encoding, which is faster and keeps the original quality. Otherwise the video is re-encoded as RealVideo 1.0 (up to 480p) with AC-3 audio.
Why convert M4V to RM?
- Tiny files for slow connections
- Plays in RealPlayer and VLC
- Historic format useful for old archives
- Plays on: RealPlayer, VLC and MPC-HC
What to expect from this conversion
- Expect a file of similar size to the M4V original.
- The only RealVideo encoder available is RealVideo 1.0, so RM output is limited to 480p and sizes that are a multiple of 16 pixels.
- Videos bought from iTunes may be copy-protected. DRM-protected files cannot be converted by any tool, but your own M4V recordings work fine.
- RM is a legacy format. Convert to it only when an older player or device requires it, since M4V is better for everyday use.
- The first audio track is kept. Subtitle tracks, extra audio tracks and chapters are not included in the converted file.
M4V vs RM
| Property | M4V | RM |
|---|---|---|
| Full name | iTunes Video | RealMedia |
| Released | 2001, Apple | 1997, RealNetworks |
| Generation | Modern | Legacy |
| Typical file size | Small | Small |
| Plays on | iTunes, Apple TV, iOS, macOS and VLC | RealPlayer, VLC and MPC-HC |
| Best for | syncing videos to iPhone or iPad; playing on Apple TV | old RealPlayer libraries; restoring early internet video |
Steps to convert M4V to RM
- Drop your M4V video file onto the converter, or click to choose it.
- Check that RM is selected as the target and adjust the options if you want.
- Press Convert, then download your new RM file when it finishes.
Tips for the best result
- Leave Fast mode on to keep the original quality whenever the streams can be copied.
- Pick a lower resolution if the file is for a phone or messaging app.
- Use Mute if you only need the picture.
Frequently asked questions
How do I convert M4V to RM?
Upload your M4V file, make sure RM is the selected target and press Convert. When the progress bar finishes, download the RM file. No account or software is needed.
Is the M4V to RM converter free?
Yes. It is free, with no watermark, no sign-up and no daily limit on how many files you convert. The site is supported by ads.
Will I lose quality when converting M4V to RM?
Not necessarily. If the video and audio streams already fit inside RM, they are copied without re-encoding, so quality stays identical. If the file has to be re-encoded, the High setting keeps almost all visible detail, while Small trades some detail for a smaller file.
Will the RM file be a similar size to my M4V?
Expect a file of similar size to the M4V original. Choosing a lower quality or resolution reduces the size further.
Which devices can play RM files?
RM files play on RealPlayer, VLC and MPC-HC.
How large a file can I upload?
You can upload videos up to 500 MB. Files are deleted from the server about 30 minutes after conversion.