Do you have a microphone that you would suggest that will provide good quality recordings in a conference room/lecture hall. (very large room)?
I use an Olympus DS-2000 digital voice recorder.
Shure does not have information about this recorder. Please see: Will microphone model X work with my device that needs a mic?
It is important to understand what a microphone can and cannot do when the microphone is at a great distance from the sound source. Please read the following: What is the distance factor of a microphone?