RMVB to GXF - Online Video Converter
Convert RMVB to GXF online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
About RMVB to GXF
Convert RMVB to GXF. RMVB adds variable bitrate to the RealMedia container for smaller downloads. GXF is the Grass Valley server format for broadcast playout. Server metadata drops on export; the picture and sound carry over..
Why convert RMVB to GXF?
- Smaller files with GXF lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
RMVB vs GXF
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | No |
| Compression | lossy | lossy |
| Typical use | RMVB adds variable bitrate to the RealMedia container for smaller downloads. | GXF is the Grass Valley server format for broadcast playout. |
When not to convert RMVB to GXF
- Skip GXF for archival masters: lossy compression discards detail, so keep the RMVB original.
- Keep a master copy: repeated exports stack small losses, so archive RMVB before batch GXF shares.
Limits
Starting point: RMVB - RMVB adds variable bitrate to the RealMedia container for smaller downloads. Variable-bitrate seeking can drift; verify sync after conversion. Server metadata drops on export; the picture and sound carry over. Encode GXF (MPEG-2 / PCM) from RMVB 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.