Convert M4A to RM Online — Free
Fast, free M4A to RM converter. No registration required.
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How to Convert
Upload your .m4a file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .rm file when it's ready.
What is M4A?
M4A is an audio-only MPEG-4 container, commonly using AAC encoding. It provides better quality than MP3 at similar file sizes.
Format Details
- Full Name
- MPEG-4 Audio
- Extension
- .m4a
Key Features
- Better than MP3
- Apple ecosystem
- AAC encoding
- Metadata support
What is RM?
RM is RealNetworks' proprietary multimedia container format. It was the dominant streaming video format on the early internet through RealPlayer but has been largely obsoleted by modern codecs and containers.
Format Details
- Full Name
- RealMedia
- Extension
- .rm
Key Features
- Streaming format
- Low bandwidth
- Legacy support
- RealPlayer native
M4A vs RM
| Feature | M4A | RM |
|---|---|---|
| Full Name | MPEG-4 Audio | RealMedia |
| Extension | .m4a | .rm |
| Best For | Better than MP3 | Streaming format |