After fighting vinyls for decades I was surprised at a couple of Pioneer jukebox seminars. Cd's were a godsend their lifetime should be 10 times that of vinyl. But the Pioneer engineers applied the same principles to preserving cd's as the old vinyls. In the old jukeboxes from day one the records were in a rack in a vertical position so dust and crap wouldnt collect on the top surface. I have seen KJ's carefully not touch but lay a cd on the table with the "playing" side up where falling particles can collect NO. It is better to lay it down on a clean surface..Label up.
Cd's come in a ream stacked in 100's and as long as they are not spun against each other no problem.. Same with a vinyl never allow contact with a rough surface or particles (needle) and sand the surface. (You can play an old mono with a stereo needle but cant play a stereo vinyl with a bigger mono needle)
With the old tuber jukes a lot of heat circulated through the box I have pulled boxes out of bars that hadnt been in a shop for 2 or 3 years the nicotine was so built up it took a special cleaner and a full day to clean. Same with the cd players Everytime you open to insert another cd heat either escapes there or if elsewhere it pulls nicotine and crap into the machine. In a smoke filled bar the optics have to be cleaned monthly. (what does it do to the laser penetration?)
Cd's are more tolerant of heat but are still vulnerable to it. Never leave in a vehicle in summer. A jewel case always is dust proof never bends or puts a rub on a cd.
The shack has a cleaner which should be applied in small amounts
and the cd should be cleaned or rubbed from the hole or inside to the outer edge. Any cleaner with a small amount of grit can be used I think Lonnie even mentioned Brasso once. There are those like timberlea on here that have cd's in the same shape as when they bought them years ago. (He has more patience than I do!!)
Now I'm goin back to digital...
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