Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Allsop Scratch Repair System

I have used this repair kit to fix scratched DVDs and game CDsfor my sons PS2. These discs could not be repaired by this system.In fairness, the PS2 started to deteriate and will not now playDVDs. So perhaps the fault is in the PS2.As a test, I took 10 software installation discs that were obsolete. I used a knife to scratch the surfaces. I was amazed at how much damage these discs suffered before they could not be read by the CD ROM drive. Of the 10, only 1 could be repaired with this product.