@richard_herron Making videos takes longer than you think -- about an hour per minute of video.
@richard_herron No, that includes scripting, filming, editing, etc. If you already have a planned lecture and are going to just record it I imagine it wouldn't be nearly that long.
@peterdrake Yikes! Does the 60:1 ratio hold if you already prepared lectures and plan on low-tech screen recordings? Thanks!