Any chance of a review of the above software? Having recently bought a USB DAC (Geek Out 32-bit/384kHz) I have downloaded the trial versions of Pure Music and Audirvana to my MacBook (running OSX Mavericks.) neither of them worked especially well, probably due to insufficient RAM, so I have settled upon BitPerfect as a player. It cannot play DSD or FLAC, but at only £6.99 I am prepared to live with these limitations.
I have seen seen the recent reviews of music stores (iTunes etc.) and think that computer audio playback software would be a natural step, especially as WHF seems to I've Pure Music as it's playback software of choice.