I tried to participate, but the sample material is intolerable. Seriously, "...worst-slash-best rock songs of all time..."? No "slash-best"! Definitely worst song of all time and definitely not rock. I can't take it, the heinousness of the song completely taints any objective evaluation of the sound quality. Also, unless your CD collection numbers in the tens of thousands, the space usage is insignificant by today's standards. I have around 500 (perhaps not an "audiophile" size collection, but more than most people I know) and I store them in their natural .wav format. Only consumes ~210 GB. Only slightly more than 10% of the drive upon which they reside.