Last night, Neil Young showed off this weird device on “Letterman” — an audio player and digital-to-analog technology called Pono, which supposedly allows you to listen to music at the highest possible quality. That’s right, next time you crank up “Trans,” you’ll hear it as the artist intended it. Apparently, the music industry thinks he’s onto something, according to Rolling Stone. Our question: How many people are really annoyed by the low quality of their MP3s?