Deep Purple's performance at the California Jam has been available over the years in several different releases with various names, among them: "California Jamming", Live at the Ontario Speedway '74, Live at the California Jam and finally California Jam 1974 (not counting successive re-releases, mostly Japanese).
Deep Purple's performance at the California Jam has appeared in various iterations over time, including "California Jamming", Live at the Ontario Speedway '74, Live at the California Jam, and California Jam 1974 (excluding subsequent Japanese re-releases).