Clicks/pops in recording

[Chris Abbott <redfox@xxxxxxx>]

Just recently I recorded a live piano concerto. All of this was done 
using an ART Pre-amp, a Soundphone(I believe is the brand) CD burner, 
M-audio Omnistudio USB, and an iBook G4. Now, the pre-amp had a digital 
out that went to the CD burner. The 1/4" outputs of the pre-amp went to 
the M-audio which was connected to the ibook. Well, the burned CDs 
turned at great(note-I had the digital sample rate set to 48Khz). I had 
my Omnistudio set at 96Khz. Every so often in the recoding, you hear a 
bit of pop, which to me seems like some other system resource got 
priority. The only thing that occurred while recording was the display 
going to sleep. The airport was off, and Ardour, X11, and JackPilot were 
the only programs running. I'm curious as to what could have caused 
this, how to fix it. The next time I do a recording with it, I will 
probably have to drop the sample rate to 48Khz.

-Chris