That's one of the core problems with computer audio. There are even more opportunities for audiophile voodoo belief than with any conventional source. Just go and peer into the gaping maw of lunacy that is the Audio Asylum PC audio board. More RAM = Moar bass. PowerPC Macs sound WAY better than Intel Macs. SSD's have better definition than conventional hard drives. And that's before even touching on the software side of the equation.