High Quality Sound Cards?

[Jeff Dairiki]

Hi!

I'm looking for a good soundcard to use for making high-quality
("CD quality") digital recordings from analog source (under Linux,
of course.)

Any recommendations or pointers to FAQs?

Are there any supported soundcards with >16 bit ADC's?

How about using an external A/D converter connected via S/PDIF?  Are there
any hardware combinations for this which will work under Linux?


Thanks!
 Jeff