I purchased NCH software's Debut Professional a few days ago. I keep trying different samples, sometimes I get no audio at all, sometimes just a black screen, it's inconsistent but consistently goofed up.
Here is a link to a short portion of the audio. You can here the crackling which is throughout the project.
https://www.dropbox.com/s/qw0rbq5neg5mwjj/sample%20audio%20distortion.wav?dl=0
When I playback immediately after making a recording but before editing it sounds fine. After saving as an .avi file and then opening it up to edit it, all of the audio sounds distorted.