Smegma's Live 91-93 relies on dumpster-dived mainstream CDs that the band then defaces to serve as packaging.
They have released a split cassette with Deerhoof on Deathbomb Arc and appear on a compilation mastered by Hans Grusel with Sun City Girls, Caroliner, Nautical Almanac, Metalux, Wolf Eyes, Mono Pause, Hans Grüsel's Krankenkabinet, Tarantism, Tom Recchion, Sixes, Bran(...)Pos, Masonic Youth, Pod Blotz, Smegma, Panicsville, and others on Resipiscent.
Radon released the Smegma - Mackay collaboration album 30 Years of Service in 2005, his full-length album Michigan and Arcturus (2006), a vinyl-only release with The Radon Ensemble entitled "Tunnel Diner", and in 2008 Resipiscent released Smegma's Live 2004 featuring Mackay and Jello Biafra.