When labelling your discs with permanent pens, it’s important to know which side of the disc you write on. That’s because any scratches to the bottom of your discs will completely ruin them. It’s better to write on top of the CDs and DVDs with the CD/DVD markers. Remember, you write the discs from the inside out. So make sure to write on the end when you’re labelling them. It will be easier to find the CD next time you need it and easier to understand what soft copies it contains.