I dunno... Plex? foobar2000??? There are actually just a few programs that seem to do the job - just manage the connection from hard drive (local? network?) to your preamp/receiver/whatever. Heck, a number of receivers, etc. can be set up to connect to & play stuff on network drives - if you can present your source on the hard drive to whatever you use it's become surprisingly easy to play 'em.
