nice cam. you can use it in the stil frame mode where it clicks stills every second or so, or run it in the video mode and depending on your card size get about 30 moniutes or more on the card of nice video.
note that you can leave the case ajar and the sound recording is significantly improved, but it will take on water of you submerge it.

I only mention this as if you have it mounted above your head it is pretty splashproof even with the access panel ajar (play with the latch and you can see what I mean, they mention it in the manual that came with mine, or go to their website and request a new manual). Since I mainly use mine in MX the dust is what I want to keep out so I keep door firmly closed. Amazing little camera. ps. if you use the cution cup to mount your camera, use a little silicone on it before attaching to a clean place on your hull (I know, all your boats are spotless, us guys here in the desert have dust magnets).
If you have a mac it already has nice editing software that you can add music or whatever. I just copy them to discs and play those on my computer.
Enjoy and post 'em!