Less is more...WAV only and no screen make the Tera-Player the ultimate hardcore portable player available. One of the most expensive too. Soundwise, a lot of afficionados reported not being able coming back to something else. Considering price and limitations in terms of format and navigation of the Tera-Player, it would be nice to get a DTR1 vs. Tera Player comparison.
Actually the the limitations in terms of format and navigation of the Tera-Player as you put it, work best for me. Is all about the sound, simplicity, portability and a Perfect bug free UI.