Hi all, I currently own 2 portable MD units (Sony MZ-R70 & Sony MZ-R501) and Sony ECM-719 microphones, both of which are capable of recording. Now the actual problem is which of the units would produce the best audio quality (lossless preferred). The connections on the MZ-R70 are these: mic for plugin power & line in (optical), and for the MZ-R501 it only has a line in (optical. Should I use the oldest model and ditch the battery from the microphone, or should I try the microphone on the optical line in jack, which to my understanding should work with a standard stereojack microphones also? Also, my computer's soundcard has only analog linein and that has led me into the third choise; Sony MZ-NH700/s, which would also allow me to transfer the audio via USB (I'd only record with the microphones). In my local store I could get that for about 250€ and it's definitely a price I'm willing to pay if the quality of recording would be greatly improved. Oh, and I'd be recording live music in club sized venues as well as arena sized venues.