Back in the late 1990s and early 2000s, surround-sound music looked like the next big thing, but in the intervening decade and a half, precious little rock, jazz, or world music has been recorded in surround. True, in the early days of SACD and DVD-Audio formats there were hundreds of remixes of older stereo recordings, and some were recycled on Blu-ray, but the number of newly recorded 5.1 titles remains paltry. Looking back, the early 2000s should have been an ideal time to launch surround music; multichannel home theater was peaking, so there was a large number of households with surround systems, but surround sound without an accompanying image was a non-starter. (Credit: Steve Guttenberg/CNET) Now, in 2014, multichannel home theater sound is on the wane; today's buyers are opting for single-speaker sound bars in ever increasing numbers. Multichannel sound at home is fading fast, and multichannel over headphones never took hold.