Perhaps I should have elaborated...my X9 was able to play most rotted discs. But some (WILLOW for example) were so bad that even the X9 had difficulty. But when I needed a new laser pick-up, I had it replaced by an exceptional technician by the name of Kurtis Bahr. In addition to the pick-up, he added a few tweaks and when he was finished, my X9 handled WILLOW and every other rotted disc perfectly. And the PQ on all other LDs was improved as well. So good, that I never had the need to replace my LDs with DVDs. (Of course, it's a different story with Hi-Def.) His work did not just make the player "as good as new"...it was BETTER than new. He did indeed make the X9 a "miracle machine." So those players did have the capability to eliminate the rot problem, if worked on by an engineer with Mr. Bahr's skills. For anyone out there who still has an LD player, Mr Bahr (if he still does repairs and if parts are even still available) is the wizard to seek. Cannot praise his expertise highly enough.