Earsing a disk so i can copy over it how do i do this

U NEED CD-RW DISC TO ERASE AND REWRITE IF THE DISC READS CD-R IT WON'T REWRITE, U CAN NORMALLY JUST DELETE THE FILE OR REFORMAT THE DISK WITH THE WINDOWS FORMAT FUNCTION, USE UR HELP AND SUPPORT FOR HOW TO ACCESS THIS FEATURE.DEPENDING ON HOW U R TRYING TO ADD SOME APPLICATION ADD INFORMATION IN OPEN /CLOSE SESSION WHICH MEANS AFTER THE APPLICATION CLOSES ONLY IT CAN ACCESS THE INFORMATION