Well, I finally updated my iTunes and got iTunes Plus. When I visited the iTunes Plus store, it asked me if I wanted to upgrade my music to the new DRM-free format. Sure, why not for $2.40. The music is truly DRM-free AAC encoded at 256kbps. I threw the files onto my MemoryStickProDuo and put that into my SonyEricsson w810i. The w810i played the files just fine. This is still not as good as eMusic's approach at DRM-free music -- I prefer the more universally supported MP3 format instead of AAC -- but it is a good start for commercial music. I hope more studios and labels go DRM-free in the near future.