COMA Blog
Direct Play vs Transcoding in COMA Media Server
Understand direct play, transcoding, subtitles, HDR to SDR conversion, and quality settings for smoother COMA Media Server playback.
Direct Play is the goal
Direct Play means the browser or device can play the original file without conversion. It is faster, uses less CPU, and usually gives the best quality.
Transcoding solves compatibility
Transcoding helps when a device cannot play the file, bandwidth is limited, subtitles need burn-in, or HDR video needs SDR fallback. The trade-off is CPU or GPU load.
Subtitles can change everything
Text subtitles are generally easier. Image subtitles or styled subtitles may require burn-in, which forces a transcode even when the video would otherwise direct play.
Use quality settings deliberately
If playback stalls, try 10 Mbps or 4 Mbps, then check Admin > Transcodes for failed jobs. Confirm FFmpeg is installed and hardware acceleration is configured only when drivers support it.
Watch the COMA quick start video, open the full walkthrough guide, compare licence plans, download the server, or read the technical docs.