player's CD drive is much superior than a computer's CD/DVD drive?
Not correct at all - the drive in your PC is much better for ripping as it allows for error correction and multiple reads (see Palmerston's response). The main reason for CDP like Esoteric to be so overbuilt is because information is read in real time (and timing info is derived from it). Once you get rid of the real time requirement (e.g. as for ripping music), transport quality doesn't matter that much as multiple reads and comparisons can compensate.
As for the first point: You need a digital input on your CDP and most CDP just don't come with one. Best to use an external DAC.