Cleaning playstation 2 secondary laser lens unknown to most. Fixed DRE! - YouTube
Laser Lens Cleaner for Cd Dvd Cd-rom Pc Ps2 Ps3 X-box Includes Cleaning Liquid | eBay
I replaced my PS2 laser because it had problems reading DVDs but after running the lens changer program 4 TIMES it still has the same problem, the only thing I could think
How to Fix PS2 Disk Read Errors : 4 Steps - Instructables
How to clean my Playstation 2 slim laser. Fix the PS2 slim disc read error! - YouTube