I have subscribed to the Rhapsody streaming music service for several years. Rhapsody has provided a wonderful, cost-effective way to become familiar with a lot of music that I didn't necessarily want to purchase. In the past few months, they have also added "Rhapsody to Go," a service that lets the customer rent tracks and transfer them to MP3 devices equipped with the appropriate Digital Rights Management (DRM) technology. (Right now, my 1GB iRiver T30 contains a few Frank Zappa albums, Alanis Morissette's Jagged Little Pill, Fiona Apple's Extraordinary Machine, Comfort Eagle by Cake, and the Lindsays playing the big Schubert G-major quartet.)
Until recently Rhapsody's classical offerings were limited to a handful of old RCA titles, smatterings of the EMI and Warner (that is, Teldec and Elektra/Nonesuch [and, more recently, Erato]) catalogs, a few selections from the recently reissued Vanguard catalog, a sizable chunk of the Naxos catalog, and various and sundry smaller labels. This situation changed in the past year, however, as Rhapsody brought on board a number of major or prestigous minor classical labels: Universal Classics (Deutsche Grammophon, Philips, and Decca), Sony/BMG, BIS, Teldec, ASV, Hännsler, Harmonia Mundi, and MODE.
Rhapsody is not without its flaws. Classical releases tend to have far more audio problems than popular ones: pops, clicks, gaps, and the like. Customer service is so-so. Still, it's a great bargain.