There's a few things people must know about the PS2 and it's laser:
1- Older Ps2 models were NEVER meant to read non silver discs
2- It can auto adjust the laser power for reading on weak signal discs (this can fry the laser if the disc is poorly made or burned)
3- 5000xs Are said to support DVDR/CDR but Sony meant it only for the DVD and player. Hence the obscene ammount of lasers blown on these units. (1st generation Slimline models use the same DVD drive core as 50ks and blow lasers a lot, too.)
4- The lasers are CUSTOM made and use a different protocol to communicate with the laser amplifier circuits, making them incompatible with standard parts for DVD players.
I have a seven year old japanese PS2 console which still works like a champ.
I also have 4 other PS2 consoles which I bought broken and repaired. I keep them for my own personal use. I only had one of them to fail on me from laser failure after I fixed it. I only use media I burnt myself or originals.
And a last piece of info. Seems like some chinese company figured out how to make standard laser parts work on a PS2 by the means of a custom chip made by them and placed in the laser flex ribbon to act as a signal translator.
The laser which uses this chip is called KHS-400Q.
SCPH-10000_GH-001 SCPH-15000_GH-003 SCPH-18000_GH-008 SCPH-30001_GH-005 SCPH-30000_GH-016(V4) SCPH-30001_GH-010(V4)
2xSCPH-10190, 2xSCPH-10350, 2xSCPH-10280
"**** j0 hackers!"
-Sjeep (As seen on TOXIC OS ELF...)