RM to GXF - Online Video Converter
Convert RM to GXF online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About RM to GXF
Convert RM to GXF. RM is RealNetworks' streaming container pairing RV video with Cook audio. GXF is the Grass Valley server format for broadcast playout. Server metadata drops on export; the picture and sound carry over..
Why convert RM to GXF?
- Smaller files with GXF lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
RM vs GXF
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | No |
| Compression | lossy | lossy |
| Typical use | RM is RealNetworks' streaming container pairing RV video with Cook audio. | GXF is the Grass Valley server format for broadcast playout. |
When not to convert RM to GXF
- Skip GXF for archival masters: lossy compression discards detail, so keep the RM original.
- Keep a master copy: repeated exports stack small losses, so archive RM before batch GXF shares.
Limits
Starting point: RM - RM is RealNetworks' streaming container pairing RV video with Cook audio. Decoding paths for early Real codecs are scarce; try remuxing first. Server metadata drops on export; the picture and sound carry over. Encode GXF (MPEG-2 / PCM) from RM at a bitrate near the source, and confirm the audio track before converting.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.