You need:
a Lightscribe DVD-RW drive (a DVD-RW drive is not enough)
a butterknife
Marmite
A blank Lightscribe disc
Instructions:
1. open the disc drive
2. using the butterknife, smear marmite liberally on both sides of the disc
3. insert the disc and close the disc tray.
4. open my computer
5. the DVD drive icon will be replaced with a picture of a jar of marmite, and the text alongside reads; MARMITE!
6. select the MARMITE! and press CTRL+C
7. Open up Email, Press CTRL+V to insert the MARMITE! into the email and send it
8. The person at the other end needs a lightscribe drive and disc, too
9. They should put the disc in the drive and drag the email attachment into its write folder
10. Write the disc
11. When they open the tray, the disc will be identical to yours, i.e. it has Marmite smeared all over it.
This operation may void your warranty.