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How to copy a disc to another disc
cdBurner copies a data disc by reading it to an image, then writing that image to a blank — an exact, end-to-end duplicate.
Step by step
Connect the burn agent
Open onlinecdburner.com and connect the burn agent.
Rip the source to an ISO
Insert the disc you want to duplicate and rip it to an ISO image.
Insert a blank disc
Swap in a blank disc of the same type.
Burn the ISO
Write the saved image back — you now have an exact copy.
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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.