I don't know. my original ps2 and modchip lasted about 12 years, then one day I couldn't boot anything including retail discs. I bought a new system about 2-3 years ago. I don't play it often, but everything but a backup of mega man anniversary collection works and fast too.
mm anniversary collection has heavy skipping on the opening. for some weird reason, a newly burned disc works a few times, then stops working. I thought it might need a pot adjustment, but that does seem doubtful if it's just that one game. I bought the retail disc, and it works 100% on there. one thing I have found with the ps2 is that almost every ps2 has a problematic game or two that refuses to work correctly. my original ps2 would read mega man x3 almost every time as a music disc. you can play the game tracks in a cd player, which might've confused it. this new ps2 has no issues with it including skipping, which my old ps2 would do quite a bit with the game (if it loaded). I was thinking about just soft modding the system, but I have like 300-400 discs. I tested a couple of those, and they booted right up. most of my burns are on tdk, verbatim, or taiyo yuden, but I do have some on sony discs. sony discs are average. I once bought a spindle of 100 of them, and 10 were duds on the old ps2.