Craig, as Masa and Josh pointed out, all CD players have clocks which synchronize their output just fine and have mistiming "jitter" at an inaudibly low level. This is true regardless of whether the player cost $5,000 or $50. I've read some nonsense relating to add-on clock modules which purport to reduce jitter so that the "tempo" of the music is much improved. More snake-oil; save your money.

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Enjoy the music, not the equipment.