I use Sound Recorder. Just set your audio settings to make your microphone your speakers. Hit "Record" and wait for it to hit 60 seconds. Copy that sound and Insert until it is the length you want. Set the cursor to the beginning and hit "Record". Go into the game and let it play the parts you want. Exit and go back to Sound Recorder. Cut out the empty pieces and pieces you don't want.
I just like doing the complicated way for things.
(MSPaint, Sound Recorder, other things that come with Windows.)