It is also important to note that getting music from a cd onto a harddisk is non-trivial due to the vaguaries of the redbook format, so some quality will be dependent on the copy. There is more information about this at EAC (http://www.exactaudiocopy.de/) which seems to do the best job so far, and here's a good thread about both this and the squeezebox:
http://forum.audiogon.com/cgi-bin/fr.pl?icomp&1082299211
http://forum.audiogon.com/cgi-bin/fr.pl?icomp&1082299211