The one issue with the technique the builder of the "MPXplayer" used is that he leverages the VESA feature connector on the video card to supply a custom clock, and I haven't seen a video card with the VESA connector for a long, long time.

(As a counterpoint, modern video cards have more flexible clock generators than "real VGA" so you *may* be able to program a current card to supply an appropriate-frequency signal with its built-in hardware.)