10:05 AM on 10/08/09
I'm a big fan of the CD sampler. If not for them I would have been subjected to far fewer bands. Fat Wreck had a great "Survival of the Fattest" series, and the Warped Comps were great for the first 4 or 5 years (especially the live one).
Finding a free disc in a purchased CD has always been a blast, and there's almost always one song worth investigating.