These are some programs that I have written for personal use. They were all written in C++, although some have inline assembly as well. I have provided them here in the hopes that they will be of use to others.
AVI Player: A simple yet useful player for AVI files
Lagarith: A lossless video codec I have written. It is slower than Huffyuv, but can produce smaller files than most other lossless codecs.
3D Mandelbrot: The Mandlebrot fractal in 3D.