Free and best recorder for joomla extension
1. The recorder I've been using is Camtasia Studio; it records the screen and the audio of the computer.
Although it's a bit expensive it can be very useful especially when you are in an online business,
You can try Camtasia for free with a 30 days trial.
Here is the link for the download Click here
2. Anyways what you really want is a free recorder. Try Camstudio for windows.
Cam Studio is a free video, screen, audio recorder software of your computer.
Its major functions work like Camtasia.
I hope this helps you solve the problem.