What is the difference between the HK CDR 20-Z and the HK CDR 26-Z? At the same price, which would you buy? http://www.harmankardon.com/specific...R%2026&sType=C How are the HK CDR's as a CD playback source (transport, using onboard DAC, and headphone listening)? Finally, how would you rate the quality of the CDs which get recorded? thanks Sathyan P.S. I've been trying to locate a source for "Music" CDRW's but neither Best Buy nor Circuit City seem to offer them. Any suggestions?