On a tangential note, with these screencasts I tend to download them first (as the DownloadHelper FF plugin makes them available as mp4) and then view them using an external player such as smplayer or VLC.
I find that this kind of "offline" viewing provides a less frustrating, robust, and familiar experience :)
(I appreciate that one has a choice in the matter though (thanks mouser!) -- it's not always so easy to obtain a local copy.)
mumbling
Wish it were easy and reasonable to produce screencasts with navigable outlines...even nicer would be for 3rd parties to be able to provide separate files that could be used together with the original media to provide that navigability and annotation...