Have the same problem, only video recorded on the iPad does not play. Installed everything recommended and no joy, even updated drivers and what not. Has anyone found a solution to this yet?
As a side note, we are using iPad 2's. Tested on a single iPad 3 and the issue seemed significantly diminished.
iOS 7 fixed the issue for us.
We have 7.0.2 on the test devices and still issues, oh well I will see what I can do, thanks
On a related note, don't install the latest AirServer client (it now has a black icon). It just gives a black screen and doesn't mirror correctly. Uninstall and re-install AirServer 1.9.4 (silver icon) and it works correctly!
I don't understand why they keep publishing new client updates so regularly.