Most of the media files I used for testing this program were obtained from free sources. Specifically, I got the video (of a biplane doing tricks) from Wikipedia's article on web video, the music, orignally called "Kalimba.mp3" from... Freesound, I think? I made the title screen in Microsoft Paint. And I originally used Windows 7's "Ding.wav" as the click, which I guess isn't free, but I'm not benefitting financially from it, and I'm certainly not hurting Microsoft by using it, so you could make a case for fair use there. But none of that really matters, because due to Neocities policy I can't upload .wav, .mp3, or video files to this website anyway. I guess I'll have to figure something else out.