I use Netflix, and lately, the service has been a little inconsistent. I've gotten a couple of cracked DVDs, too. (One was particularly annoying: ordered 3 discs of I, Claudius, and of course, the first one was cracked, so we couldn't even watch the others until a new first one came.) As far as fitness DVDs, they do have alot, but I've found that many are what I call "fitness lite." Blockbuster now has a service just like Netflix. Maybe check them out.