Krylon #1305 works great.
Use an old dvd case as a mount for your dvd to be sprayed..
Personally I like the one from blockbuster. The center circle is longer and it has another circle that basically seals the edges of the dvd disk, protecting the bottom from the spray. It also has indentations so you can remove the disc without touching the top.
Also use one of the foam spacers from a hunderd count spindle to cover the center hub (depending on the size)(use as needed)
Spray 10 to 12 inches away from the disc and start and finish each pass outside of the disk about 5 inches or more.
Let stand for about an hour before placing it in a dvd case. Ready to use in 24 hours.
Wear a mask! That stuff is toxic.