I have the answers. I am in touch with a Dual 2 G5 owner who chooses to remain annonomouys. A 1.6 owner is posting his findings over at the <http://www.SpyMac.com> Hardware Forums. So I now know the ripping speeds of all three G5's. 160 kbps AAC rips. Sony DW-U10A SuperDrive 32x reader. 1.6 G5 got 20 X -22 X or 180 seconds per CD (60 minute average length) Dual 2 got 26 X -30 X or 120 seconds per CD So one can assume a 1.8 will do about 24 X - 26 X AAC ripping is a single processor task BTW - so far. I'm wondering if a 52x reader will help improve the dual 2 G5's rip speed. But my hunch is probably not much. So the 3 GHz G5 should do at least 45X or 90 seconds per CD with a 52x reader attached via FireWire. That's the skinny on the AAC ripping front. I really need that 3GHz G5/6 so bad. ; ^ ) kunga10 (AIM) kunga47 (Yahoo Messenger with Cross-Platform dial-up Video sans audio on Macs)