Tony,
Does the motor ( disc ) spin?
Does it keep spinning after you press stop ?
Take for ever to engage ?
If so ;
Take off the "rosewood" panels
Then remove the cover.
After that you`ll see a bracket that goes across the top.
It will be held by 4 screws.
remove screws.
You should see the drive spindle and the top area where the disc sets on is rubber.
Take some 51% alcahol and clean that rubber pad.
Best way to clean it is with foam tipped cleaners that you can pick up at radio shack. A q-tip will only cause more problems.
Once it is clean , reassemble and try a disc , should work !!
Of course if the motor won`t turn at all then , is has passed
I have a CLD-99 , and every now and then I have to clean that pad so I have done it a few times.
I also had a CLD-97 ( no AC-3 ) nice units
If yours has died try to get an LD-S2 and have (or buy) an AC-3 demodulator.
I have some AC-3 LD`s that sound better than DTS dvd`s !!
I hope I have helped , just out of curiosity , post if it works !!
Gary