CD player vibration from CD's


I was changing a cd and noticed a strong vibration in my Oppo BD83SE cd player. I have had quite a few cd players and have never noticed this kind of vibration before. I found it was not caused by all cd's. With some, the majority, there is very little or no vibration. I am assuming the cd's in question are not round. Anyone else have this happen with your players? I am especially interested in Oppo Players but anyone feel free to chime in.
leatherneck1812
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If you can track it down to certain cd's that are vibrating, try them in a different player, maybe it's the Oppo that is the problem. I'm not sure a slight warp would cause a vibration, it may be more likely an off center (out of balance) disc can cause a vibration, those discs can be cut to even them out. I only own several hundred cd's but have never seen this problem, good luck tracking it down.

Mike
I experienced it with a different player, a Denon DVD player which I soon returned to the retailer. Only happened with some CDs but the same CDs played fine in a couple other CD players I owned.
leatherneck why not do what i do with warped CDs. I put it under enormous amounts of heat and pressure. These conditions will form diamonds naturally.