Infact what it does is it litteraly lets you record your users' browsing session and play them back. The service is in beta mode and its the service from Tapefailure. Tapefailure does not collect basic data that other analytics software (such as Google Analytics) gathers. Instead, it focuses on what the user does, not who the user is or what they use. Even going about and using this service is also very simple. You simply need sign up for an account, which takes only a couple minutes, and then create a unique identifier for each website you wish to track.
The idea here is to help understand and analyse the behavior of the user and improve your site.. just as they say Record, Review, Revise.
Heres' the official site