1.
IF YOU DONT BELIVE ME AND THINK THIS IS FAKE, PLEASE CHECK MY NEW VIDEO OUT:
''This CD Scratch Repair Do Work..! -- PROVED -- NOT FAKE''
www.youtube.com/watch?v=erKp0Hb_F04

2. 
How to Repair a Blue-Ray: Game, Video, Disc:
www.youtube.com/watch?v=D31M0m7EU-8

UPDATE: Use a soft towel instead of news paper, because the metal clips can scratch the cd from the back and destroy the data

0:00 - Intro 
0:55 - Step 1 inspect the CD
3:25 - Step 2 Remove / grind the scratches
7:00 - Step 3 Polish the CD

* this is the same method the machine: Jfj Easy Pro are using, we are just doing it manuel in the hand and not with the machine

This guide is a 3 step  CD + DVD + Game repair guide for removing scratches:
1: check the scratchtes 
2: Surface Smothing / grinding
3: Polishing

Make sure to polish it, so it shines and so its like a mirror. if its mat the lazer cannot read the data on the cd

Follow the guide in this video carefully and take care when working with the cd, by not damageing the data, then you can fix / repair a scratched CD, DVD or Game by your self.