stuff i used to do is a retrospective compilation album by deadmau5, containing track ranging from 1998 to 2017. The first 13 tracks were prereleased and available for free via file-sharing on WeTransfer on February 24, 2017. It was released on his record label Mau5trap on March 3, 2017. Several tracks from the album were previously released on other albums and compilations: "Messages from Nowhere", "Sometimes I Fail", "Support", "Try Again" and "Unspecial Effects" featured on Zimmerman's debut studio album Get Scraped. "Digitol" and "Squid" feature on A Little Oblique. "Screen Door", "Long Walk Off a Short Pier", "Superlover" and an earlier version of "My Opinion" feature on Zimmerman's 2006 compilation album deadmau5 circa 1998-2002, as well as "Obsidian" (titled "Obsidian (Halcyon441 Remix)" originally). User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.