On sunday I am planning on recording a sermon with the goal of turning it into a mp3. It will be all speech and I will be using a MZNH600. It's the non-american one with line in. The good news is that I can plug the line out of the sound system into my minidisc. The bad news is that I have never recorded with it before. Do I just plug it in, hit record and forget about it? Or should I be checking levels or something? Should I use PCM or go with HiSP? Does anyone know how long I can expect a fresh AA battery to last for when recording? Sony say 3 hours...