pdb1: RaVeN9347: You can then edit any video to save just the shots you want to keep using Windows Video Editor
There are a lot of programs like that . The problem is you have to record a lot of full games . Then delete them . Then remember to start recording again . You might go 5 , 10 , 15 games without a recordable shot . A very tedious and painstaking way to get a replay .
It appears that this is another application that can be configured to record in a loop of a duration of your choosing.
It's not necessary to record whole games, just have the application running in the background, press a designated shortcut key, and a record of the last minute (or whatever period you choose), of the game or whatever you are doing, will be saved for you.
Software designers have, I'm sure, long been aware of the fact that people do not want to record whole games on the off chance that there will be a moment they may want to capture. That is why these kind of apps exist.