Hi - after previously using a microcassette player to record interviews etc I am quickly falling in love with my MZ-RH1! But I have a couple of questions ... I ended up getting the ECM-DS70P microphone - a stereo microphone. Is there any advantage to recording speech in mono (I will be using the sound files in Audacity for a podcast) and if there is an advantage can I record in mono using the microphone i bought? (Hopefully the answer will not be 'get another microphone', but if this is the best option do you have any suggestions on a microphone that would be good for one and one interviews and for distance recording at press conferences/seminars?) Also, if I flick the hold switch on when not using the unit does this drain the battery in any way? Muzza