Rattler has the right idea here. I'm aware of the technical issues but nothing I can really do about it. My microphone records the computer buzzing everytime. MP3 files are probly best. I dont want to lay down a bunch of rules. They should not be TOO long. Rattlers example is actually right on the money. I'll try to make a list of things paople can say. I'm not a good script writer, but would probly help you all. As far as how to record them. What ever is best with your situation. Any software. They dont have to sound perfect like a studios. I couldn't even do that myself.