Kat, avoid Matsushita's COMPRO brand. I paid 420 dollars last year, and it burned very well. Burned itself at the sixth month of very light use, as soon as the warranty expired. Now I have a Goldstar CDRW which is one week old and still alive, but some wise men told me that the best is CREATIVE LABS.
Back to the subject, a genre where I would pay DOUBLE to get the score, is in classic or pop choral works, but this is out of the focus in this forum. In that music, a MIDI is many times more important, because voices can be easily manipulated to produce STUDY versions, where one voice is raised in volume, position in stereo and timbre, then another voice, and then a set of CDs or tapes can be delivered to singers, one to sopranos, one to altos, one to basses, etc. They follow the score and hear their voice simultaneous with orchestra and the other voices, but very clearly differentiated. That's great for study for the majority of singers who don't have the skill to try the music at the piano.
Un abrazo - Andrés