Psndlv3

It looks like a truncated file name or a registry key related to audio drivers (sound = snd) and level 3 (lv3). In programming, "lvl" is level. So: psnd_lv3 → "Pseudo Sound Level 3" or "Post Sound Level 3".

While the original web interface has faced downtime or domain changes over the years, the database remains integrated into various homebrew applications, such as the psndlv3