On Mon, 13 Mar 2006 16:50:28 -0500, "RCE" wrote:

I wonder, for the Ipod fans, what the
file size becomes if sampled at these higher rates.

File size is more or less linear with sampling rate, i.e., 256 is
about twice as large as 128.

There is also a MP3 format with variable sampling rates which works on
the assumption that not everything needs a high rate. Usually sounds
OK, at least for casual listening.