Convert MP4 to RM Online — Free
Fast, free MP4 to RM converter. No registration required.
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変換方法
Upload your .mp4 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.
MP4とは？
MP4 is the most widely used video container format. It stores video, audio, subtitles, and metadata. Compatible with virtually every device and platform, from smartphones to smart TVs.
形式の詳細
- 正式名称
- MPEG-4 Part 14
- 拡張子
- .mp4
主な特徴
- Universal compatibility
- Streaming support
- Small file sizes
- Hardware-accelerated playback
RMとは？
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.
形式の詳細
- 正式名称
- RealMedia
- 拡張子
- .rm
主な特徴
- Streaming format
- Low bandwidth
- Legacy support
- RealPlayer native
MP4とRMの比較
| 特徴 | MP4 | RM |
|---|---|---|
| 正式名称 | MPEG-4 Part 14 | RealMedia |
| 拡張子 | .mp4 | .rm |
| 最適な用途 | Universal compatibility | Streaming format |