Use Line In only for live recording. To do this you must, must have a battery box to supply powewr to the mics and boost the signal in...... Using Mic in will almost always result in overloading the preamp in the unit ( almost all Sony preamps are poor in this regard ) I have both MD and DAT...the DAT has been modified in the preamp to accept a high signal in without overloading but as far as I know the mods are not availible for any MD units. I must also say that any Hi-MD with the ability to record line in which can also have changing record levels "on the fly" is the way to go....I bought a NH-1 to do this and it is almost the perfect machine for live recording Why? -Line in -Backlit remote which controls all functions -can change levels on the fly -can record in PCM