If you want your SurfacePro to be the best quality portable audio player: 1. Purchase a Geekout by LH Labs. Geek by LH Labs 2. Install the Geekout ASIO driver 3. Install Foobar2000 and add the ASIO input/output components 4. Install the Foobar2000 SACD and DVD-Audio components At this point, you will be able to play any music file at any resolution and have it sound amazing. Please purchase a decent set of earphones/headphones to not waste the quality.