The label's first release (September 1, 1985) was titled Deep Six (CZ001). This was a compilation LP that featured early grunge bands Soundgarden, Melvins, Green River, Skin Yard, Malfunkshun, and The U-Men.
Melvins releases on C/Z Records include;
- Six Songs (1986, vinyl)
- Eight Songs (1991, vinyl)
- 10 Songs (1991, CD)