+1 on the hairdryer and floss. It'll keep you from peeling up part of your dash covering.
Keep in mind that this is likely to tear up the adhesive, so you might not be able to use the disk again.
After you remove the disk, If you want to get residue off, use the hair dryer and Goop-Off (or Goof-off), or similar product that gets off stickers, glue, and other junk. Try peeling the glue away with a paper towel soaked in the goop-off.