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How to burn a Blu-ray disc
Blu-ray discs hold 25-100 GB — ideal for big archives and HD video. cdBurner writes BD-R and BD-RE discs straight from your browser.
Step by step
Connect the burn agent
Open onlinecdburner.com. The first time, install the tiny one-time helper so the page can reach your drive — after that it just works.
Insert a blank disc and pick your drive
Put a blank disc in your writer and select it. cdBurner shows the disc type and free space.
Add your large files or HD video
Click Files or Folder and choose your large files or HD video. A live gauge shows whether it fits.
Set options and burn
Pick a write speed, keep Finalize on for maximum compatibility, then click Burn disc.
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Why cdBurner is different
Most burning apps are bloated installs full of upsells. cdBurner does the whole job from your browser — free, with no toolbars or trialware.
- 100% free — no trial, no watermark, no nag screens.
- Private — files are written locally and never uploaded to a server.
- No bloatware — one small signed helper, not a heavy install.
- Built on Windows' native IMAPI2 engine, so your discs read everywhere.