Rio Volt SP250 firmware update v2.05 provides some nice new features for this CD/MP3 player. I don't really look at the thing too often while it's playing, I just let it play whatever it wants. Gapless playback of audio CDs is a big win for those of us who listen to thru-score musicals and track-marked continuous symphonies, pretty much perfecting the device. New features that I'd love to find a use for include bookmarks, and a new "study" mode that lets you jump back 5 or 10 seconds with the push of a button. Transcribe those jazz solos, or memorize that sonnet with an easy button press!