Now that I got a mic that can be used with my MD, what settings are best for recording? I have an MZ-R500 and just got a boosteroo mic, I've been messing around with it ,but can't find which settings are good for recording a lecture/group discussion. I know, I should place the mic in the middle of the group, but what vol settings? can the record volume be changed? how? I'd read my manual, but I don't have one now. thanks in advance! :-)