B6326.mp4 -

The most "interesting piece" regarding this topic is the card's legacy as the that somehow became a massive commercial success. The Legend of the SiS 6326

If you are referring to a specific video file you've encountered elsewhere: b6326.mp4

Released by Silicon Integrated Systems (SiS) in June 1997, the 6326 chip was widely mocked for its abysmal 3D performance compared to competitors like 3dfx or Nvidia. The most "interesting piece" regarding this topic is

The string sometimes appears in automated log files for video transcoding (e.g., /storage/6563-3262/.../VID_...mp4 ), which may be where a filename like "b6326.mp4" originated in a technical sense. b6326.mp4