So I get there needs to be a codec or something BUT I have simply purchased the Camtasia and recorded straight from the capture screen tool... The other help I found simply told me I needed a codec.. How the heck do I get that?? Why does it not come with Camtasia download if it is so vital?
Not an answer, I just got the same issue. Apparently we can open with VLC and save it in another format. But that does not make sense to record through camtasia and have camtasia say it is unsupported format.