Adda Audio Visual Ltd.
From the Audiovisual Identity Database, the motion graphics museum
Note: According to IMDb, ADDA Audio Visual Limited is presumably a Japanese company.
(1982-1992)
Logo: On a red background, we see "ADDA AUDIO VISUAL LIMITED PRESENTS A JOSEPH LAI RELEASE" fading in. The logo stands still for 19 minutes until we cut away to start the movie.
FX/SFX: Everything.
Music/Sounds: A stock fanfare similar to John Williams' score for Star Wars - Episode IV: A New Hope (1977).
Availability: Can be seen on Protectors of Universe and Space Thunder Kids. Two bootleg classics:)
Editor's Note: This is, if not the longest, one of the longest logos on this wiki, clocking at 19 minutes.