The fourth in the ​Switched On​ series that compiles non-album tracks and sought after deep cuts by the groop. Following on from the first volume released in1992, 1995's ​Refried Ectoplasm​, and 1998's ​Aluminum Tunes​, the long-awaited fourth installment spans 1999 -2008 in the Stereolab story and collates 3 LPs worth of material, all remastered from the original tapes and overseen by the band. It features all the tracks from out-of-print and sought after mini-album ​The First Of The Microbe Hunters​, one-off and impossible to find tour 7"s, compilation tracks, art installation work and a couple of unreleased outtakes from the ​Mars Audiac Quintet​ and ​Dots and Loops​ recording sessions.