The Basement Tapes 1984–1990 is a compilation album by the Ultramagnetic MCs. It features the very first studio and home recordings made by the group, as well as early unreleased songs and one new track, "Smoking Dust." Many of the tracks suffer from poor sound quality, their source being deteriorated cassette tapes. "Ced-G, Tim Dog (Lab Freestyle)" and "Ya Not That Large" are not on the vinyl release.