Can I save higher quality output, that I can import into iTUNES?

I have MAC 10.4.10..  (Not Intel),,  I "think" I
am running aud 1.2.6..
A user for about a month..


Currently I import CD's into iTUNES at bit rate 1411..   The
problem  
is that after I save an MP3 from audacity, then import the
MP3, it is  
only 320 quality..

I tried saving an AIF (or is it AIFF) file from audacity,
but I was  
never able to get the AIF into iTUNES..  Im looking for any 

suggestions on getting a higher quality into ITUNES..


SIDE QUESTION:
If I make changes to the .aud file in audacity, then save
again as  
MP3, can I assume this regenerates the MP3 file again with
no loss?

Also, while editing, if I copy a waveform from an aud
waveform  
section, can I assume it will be aud quality and not MP3
quality (and  
the same for MP3 sections of waveform)..  OR AM I CONFUSED:
(maybe  
audacity finds an aud file even in the trash, and pulls up
audacity  
aud file, even though I double clicked the MP3)?

bobbler

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