I was able to pick up a nice CLD-M90 and 18 LaserDisc's, or so I thought. I tried running numerous lasers through it and it continually rejects them. According to the owners manual either they are dirty or warped. Neither is the case. It is not hooked up to a tv but that should not matter, should it? Any ideas would be great. Would love to use this in my classroom. Thanks in advance.

The M series are known to be unreliable players, alas. Any other cheap players locally?

No, they claimed this one worked and the CD portion does, but it will not read a laserdisc. Well that sucks