Applying Vaseline to a CD or DVD may Help Remove Scratches From the Media (Petroleum Jelly) The first step, materials. Getting all of your resources together is the first step before you begin the process of removing scratches from your CDs and DVDs. The second step is to clean up! It is at this point that the petroleum jelly should be applied. The next step is to get rid of the scratches. Step 4: You've Made It!