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How to erase a CD-RW
A CD-RW can be wiped and reused hundreds of times. cdBurner erases it — quick or full — from your browser so it's blank and ready again.
Only rewritable discs can be erased — CD-RW, DVD-RW, DVD+RW and BD-RE. A write-once CD-R or DVD-R is permanent once burned. Erasing returns a rewritable disc to blank so you can burn it again.
What you'll need
- A Windows 10 or 11 PC with a CD, DVD or Blu-ray writer (internal or external USB).
- The rewritable disc you want to wipe (CD-RW, DVD-RW/+RW or BD-RE).
- CD-RW.
- The free cdBurner burn agent — a one-time, 2-second install.
Step by step
Connect the burn agent
Open onlinecdburner.com and connect the burn agent.
Insert the rewritable disc
Put your CD-RW in the drive and select it.
Open the disc tools
Choose Erase from the disc actions.
Quick or full erase
Quick clears the table of contents in seconds; full wipes every sector. The disc is blank and reusable again.
Tips for a clean burn
- Quick erase clears the table of contents in seconds and is enough to reuse the disc; full erase wipes every sector.
- Rewritable discs survive hundreds of erase/burn cycles but eventually wear out — switch to a fresh one if burns start failing.
- Only rewritable discs can be erased — a write-once CD-R/DVD-R can't be wiped.
Common mistakes to avoid
- Trying to erase a write-once CD-R/DVD-R — only rewritable discs can be wiped.
- Running a full erase when a quick erase would do (it's much slower).
- Wiping the wrong disc — double-check first; an erase can't be undone.
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.
Frequently asked questions
What's the difference between quick and full erase?
Quick erase clears the disc's table of contents in seconds and is enough to reuse it. Full erase overwrites every sector and takes much longer.
How many times can I reuse the disc?
Rewritable discs are rated for hundreds to about a thousand erase/burn cycles. If burns start failing, the disc has worn out — use a fresh one.
Is cdBurner really free?
Yes — completely free and ad-supported. No trial, no watermark and no paid tier.