i'm not sure, but i read an article in computer music that claims 192kHz is better because it doesn't just cover the human frequencies (20 - 20000Hz) and they give much more depth to tunes (allowing for more complete waveforms, less "bouncing" of unwanted frequencies that could crop up from high frequency reverb etc. The best sample rate to use is apparently 88200Hz until computers become more powerful so they can deal with the sampling rate.
Eh?
The industry standard sample rate now is 96khz. I've never heard of anybody using, or any desks/ADs/recorders or outboard that can handle anything more than that.
The whole extended freq' response creating audible subharmonics is bollocks, it happens when the mic picks up the original sound, and it's that resulting summation/cancellation/aliasing that is recorded and then replayed - there's no need for it to happen at the loudspeaker to still be audible.
I've never come across 88.2khz used as a sample rate either, but it would make more sense for CDs as it's double 44.1khz. The industry standard 96khz, and 48khz before it, are less than ideal for down-sampling to 44.1khz as they're not exactly divisible by 44.1khz and so are not as accurate when down-sampled, particularly time wise.