Considering the state of the recording industry, I completely don't understand why they aren't moving rapidly to a universal download format controlled with software rather than hard media or specific file types. I would be very much interested in a high resolution version of the Rhapsody business model allowing unlimited downloads for a monthly fee. Recording companies could allow Rhapsody (or some other company) to stored a copy of the recorded master on a server which could be manipulated with file conversion software capable of satisfying everyone from the casual music listener to audiophile. A casual music listener interested in portability only could download a low resolution file while a person interested in the highest resolution could download the equivalent of the recording master. File formats could be downloaded that would satisfy IPOD, RBCD, SACD, DVD Audio, a music server, or any other current or future music playback device with this type of business model. A license key tied to the downloading device could prevent illegal copying, the downloaded file price would be based on the level of resolution, individual tracks or entire albums could be purchased and downloaded.
Because moving parts and motors create noise and vibration, I'm interested in a high quality alternative to my SACD player with as few moving parts as possible. This device would receive and store the high resolution downloads from the downloading PC. Each high resolution track or the entire album would be transferred to internal memory for playback instead of directly from the hard drive. If this device was small enough it could temporarily connected to the downloading PC to keep that type of hardware as far from the audio playback equipment as possible. The music playback device would be connected connected to a pre-amp analog inputs for music playback.
Anyway, that's my two cents. I hope someone out there is listening.