I just read this thread and I'm somewhat frustrated that the original questions the thread proposed were not answered very well.
The largest one being this (paraphrase):
What is the Apple equivalence of Exact Audio Copy? How does one make a bit perfect copy of a CD to file format on a Mac.
There doesn't seem to be a good answer for this.
A question the thread does not propose but should have is this one:
If the Sonica is already using an algorithm to produce a 16/48 bitstream from a 16/44.1 sound file, isn't this impacting the final quality of the sound? Is there a simple way to export a 16/44.1 bitstream from the USB output?
In my many searches, I have found that such a device does not presently exist commercially. This frustrates me greatly.
Beware of some misleading statements in the thread. SACD and DVD-A cannot currently be ripped or played back from the Mac no matter what kind of DAC you have. It remains to be seen whether this is an eventuality and the RIAA would certainly like it not to be.
On home theater: As strange and illogical as it may seem, he's probably right to compare the output of his Mac to the Fajourda. When Fajourda was the only company producing a standalone DVD player that produced progressive scan, many home theater fanatics opted to build DVD players from their PCs instead. Early DVD drives had incompatibility issues but once these were worked out, the quality was unbeatable.
Unfortunately, the PC itself is not the world's greatest environment for AV components and the drive mechanism itself may be a bottleneck. However, with the high quality video output of many video cards (including those built into the Macs), the net gain here is high quality video playback.
If you've read this thread and read some of the other debates on Head-Fi, you can probably understand why I'm so irritated by the recording industry's stance on copy protection and such. Converging a home theater, audiophile system and PC should be quite doable and the single largest blockcade is liscense lawyers working for content providers. If the money they wasted on that was directed toward improving public image, reworking pricing modesl and creating new delivery mechanisms, I can only imagine how much more enjoyable this hobby could be.
Imagine if I were reading a thread over in the music forum and decided I wanted to try out one of the awesome SACD recordings you guys were gushing over and to do so all I had to do was to click a link and finalize my purchase - then have the entire uncompressed SACD image shot directly to my hard drive where I could play it back through my audio system. I do think this kind of thing will happen anyway, it's just frustrating that I may not live to see it.