Right, I had already played with this. I changed the mp4 tag from Camtasia 6 to flv and then inserted into Articulate Player '09 and it plays BUT there is a black screen at the end which I wasn't able to get rid of.
However, I have not been having any problems inserting SWF from Camtasia 6 as per the recommended practices in
this article. If you choose the legacy template, then your movie will automatically be created in SWF format and you are also free to choose the framerate of your movie (I generally go for 30 fps). So if you want to incorporate Camtasia into Articulate, use SWFs from the Legacy Template.
Interestingly enough, Apple dropped FLV as one of their export options in Quicktime Pro earlier this year.
Regards