Erase a CDRW and put on new information

Go into Applications/Utlities and find Disk Utlity, double click on it to open.

Click on the CD icon on the left side of the window

Click on the Erase tab in the middle top portion of the window .

Click on the Erase button towards the bottom right corner of the window

Now click on Erase on the window that appears.

Wait paitently as the CD erases

Find the files that you want to put onto the CD-RW and drag them to the CD (follow the steps outlined in "First Use of a CDRW")