What's the best way to go about posting to youtube on the mac? What format does the video have to be in? Also, the sound I want to post, it's just audio. I understand there has to be video, I'd like my image to basically be a text file explaining what the audio is, so essentially, what I want is to convert text to image, then put that image onto an audio file to make it youtubable. Is there an accessible way to do this?