Jay said:
That's where the sample rate comes in and that's why many audiophiles weren't happy about the introduction of CDs; they didn't think the sample rate was high enough.

Yeah, I've looked into the default CD audio quality in the past and I remember thinking how it could have a better sample rate. However, while I don't know much about the old vinyl format (which could be very detailed for all I know), I just have some trouble imagining a little piece of metal twanging against little mechanically-formed grooves on a disc is really all that much more exact than what we get on CDs. In the end, all physical media rely upon limited numbers of molecular "steps" and limited levels of mechanical precision; when I see people saying big things like how "analog is better than digital," it sounds funny to me. :)