> Current high end studio quality is more like 64 or 128-bit.
I work in the pro audio biz and I can assure you that this is not the case. If you're doing a super high-end recording, you are most likely recording at and mixing down to 24-bit, 192kHz. Plenty of commercial recordings are done at 96kHz, 88.2kHz, and even lower sampling rates. Most DAW software processes audio internally at 32-bits and some will do 64-bit, but for a lot of reasons, you really don't get any benefit to mixing down to anything higher than 24-bit.