I've got a Denon DCD-520 which after nearly a decade of service is showing its age with a slightly noisy drive during playback. Anyone know where I could get it serviced? I don't want to replace it because it sounds right with the rest of my setup (and I have so many memories) but if it's not cost effective I'm eyeing the NAD C521BEE. PS I've also got a Sansui CD-190, it's 'not bad' but I'm having real trouble finding out anything about the make - they seem to make televisions now. Anyone know anything about them?