Hi Brian,

Yes, it's quite possible to get Guide and/or Charon to use A2.0
(in its "original" binary form from USNO, as copied from CD-ROM
or downloaded via ftp) from the hard drive. Information about getting
Guide to do this is at

http://www.projectpluto.com/update7.htm#ax0_direct

Once you've got Guide rigged up to display A2.0 data in this
manner, Charon will follow suit, as described at the above URL.

This may be a good point at which to mention that I've started
up a little project to get A2.0 CD-ROMs out into the world, on
a "copy them and pass them along" basis. You can now get
A2.0, in its eleven-CD form, then copy it to your own CD-Rs
and hard drives; the only "cost" is that you will then be asked
to pass the original CDs on to the next interested citizen. See

http://www.projectpluto.com/a2_pass.htm

for details.

-- Bill