Waste Disposal Machine are a Portuguese electro-rock/industrial-metal trio. Interference (2008), their first album, blends rock, metal, electronic and industrial. Debris (2014), the band's second album, opens the band to external collaborations: half of the tracks on the album were composed in collaboration with an eclectic array of artists (PMDS, Sci Fi Industries, Broto Verbo, Miss Cat, and Ah Cama-Sotz). Chimæra, the band’s third album (2024), on Ragingplanet and Chaosphere Recordings, was recorded, mixed, and mastered at The Pentagon Audio Manufacturers, by Fernando Matias.