Looking for something a little more than your average online music store has to offer? Then you may soon want to give Onkyo's somewhat niche e-onkyo service some consideration. It's set to be the first store to offer music in Dolby TrueHD 5.1 -- something that will initially be limited to just 100 albums (heavy on the classical, from the looks of things) and require a compatible Onkyo receiver. Those downloads will also only be available in Japan initially (where they're rolling out on May 30th), but Dolby says they'll be available "elsewhere in the world" sometime this fall. Not surprisingly, that new option will demand a bit
