Some discs can be erased. These discs are called rewritable and can usually be identified by their format name.
For example, CD-RW, DVD-RW, DVD+RW, DVD-RAM, and BD-RE discs can all be erased.
Some projects require a blank or erasable disc. You can erase a rewriteable disc whenever you wish by using the Erase Disc project under Tools.

Step-by-step:
- 1. Click Tools in the project list. A list of projects is displayed.
- 2. Click on the Erase Disc project name.
- 3. Follow the instructions in the main project window to erase your disc.