Kontil, yes it may be surprising, but by definition CD audio just means a PCM format with a word length of 16bits and a sampling rate of 44.1KHz. The original SB16 did just that, which is why it was claimed to be the first "CD-quality" computer soundcard available at its time. Many a Joe Consumer regard "CD-quality" sound to be the holy grail, but we all know its not true. While CD quality isn't that bad a format, there are better ones out there(DVD-A/SACD/some even prefer LP). The main problem with consumer CDs is that the recording, mixing and mastering process is done not to optimize its fidelity and sound quality, but to artificially increase the extreme frequencies and other "tricks" to make them sound better on Joe Consumer's CD walkman and boombox. Often this will sound like crap on any half decent sound system.
So my advice is, do our ears a big favor and get good equipment to do the recording 🙂
Another advice which I'm re-iterating here is that if you're spending so much money, skip sound cards completely and go with outboard mixers and HD recording. I've heard that Pro Tools is the HD recording system to get, but I'm not in the professional mixing/recording business, so I might be mistaken.