How many FW devices can you daisy chain?

Guess I was thinking about a total length of all of the CABLES put together, or does that not matter?

Thanks for the info.
I've tried several scenarios and combinations what I've found is that I can put all the FW800 drives in a daisy chain then put the 1st FW400 drive in and lastly the Digi002 mixing board (which is FW400). When I try to add to this any more drives I get unpredictable results. I have therefore bough another 2TB external drive and hooked it up through USB 2.0 and copied many files to it from the older FW400 drives as well as the only FW800 drive that ever game me headaches. It should be noted that it is a Western Digital My Book drive. It seems like it would be a great drive having FW800, FW400, and USB 2.0 connections. In practice, however, I have had LOTS of problems both on my Macs and PCs I tried using it on. I recommend strongly that you avoid using any MY Book drives. I'm having better luck with practically any other manufacturer, including what I would normally consider no names like SimpleTech and Buffalo. Those drives seem much more stable.