Just to confirm, I set the camera running last night and it happily recorded a 20 min continuous clip at 640*480, 30 fps so it looks like the card / battery would be the only limiting factor. When filming it only seems to "zoom" digitally not optically, but it can be zoomed then set filming again happily enough.
Thanks DD!!!! I got the Cam last week and kinda did the same test...LOL. Well, went out on my inagural dive last night at Vets in Redondo Beach, sandy bottom, have to search for subjects a bit. I'm not totally displeased with my efforts. As the dive progressed, the Pics got better...(as I stopped fumbling so much and settled down
)
Overall..... I like the Set up so far
Last night was standard Auto, with the ys-110 in slave TTL. Lessons I learned right off the bat?? Almost all the time I was positioned wrong (shooting down) I can work on that
. Also being patient enough to wait for the focus. Love the lil green light for focusing in the dark...LOL, I just have to learn to position it properly. Overall...so far I have no complaints with the DX and YS-110 (keeps fingers crossed) OH!! DeepDweller.... I took your tip for the tape over the flash shutter...seemed to work well
not a lot of backscatter, some, but thats probably because of my strobe positioning.. 
Oh well...cut me some slack...I'm an eager rookie, hell, that was my 8th dive, and first with the set up...LOL
http://i302.photobucket.com/albums/nn85/si...7777/shell1.jpg
http://i302.photobucket.com/albums/nn85/si...77/redweed1.jpg
http://i302.photobucket.com/albums/nn85/si...77777/nudi2.jpg
http://i302.photobucket.com/albums/nn85/si...77777/star1.jpg
http://i302.photobucket.com/albums/nn85/si...77/anenome1.jpg
Cheers,
Greg