Insert the CD-RW into your computer's CD-ROM rewriter drive. A rewriter drive is standard equipment on most newer home and office computers.
Open the list of files located on the disc. A prompt probably appears asking you whether you want to open or play your disc as soon as you insert it. If the prompt does not appear, select the drive letter corresponding to your CD rewriter drive from your list of drives and the list opens. (This usually appears by selecting "Computer" in Windows.)
Click the titles of any songs or other musical presentations that you wish to erase. You can erase multiple songs by holding down the control key while clicking each title.
Press the "Delete" key on your computer keyboard or click any "Delete" button that might be activated under or along the list of files.
Wait until the process indicator shows that the files have been deleted. Check to make sure that no titles of files you had wished to delete remain on the list.
Remove the disc from its drive. It can now be used again for any data storage purpose.