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What is an IMG file?
An .img is a raw, sector-by-sector copy of a disk or disc — much like an ISO but without ISO 9660 structure assumptions. cdBurner can write .img files straight to a disc.
Every other burner is a program you install. cdBurner isn't: it runs in your browser with one tiny background helper, and it's free. Open the burner →
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Why cdBurner is different
Every other burner is a program you install. cdBurner isn't: it runs in your browser with one tiny background helper, and it's free.
- 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.