In 2009, Buena Vista Home Entertainment began releasing "X-Men: The Animated Series" on DVD in Region 1 in volume sets. The releases named X-Men – Marvel DVD Comic Book Collection are two-disc sets and to date five volumes have been released. Volume 1 & 2 were released on April 28, 2009. Volume 3 and 4 were released on September 15, 2009. [https://web.archive.org/web/20090621082605/http://www.tvshowsondvd.com/news/X-Men-Volumes-3-and-4/12148] Unfortunately, Buena Vista Home Entertainment decided to release the episodes on Volumes 3 & 4 in airdate order instead of the correct production order, no explanation has been given for releasing episodes in airdate order instead of production order. Thus, there will be numerous continuity errors. In addition, many episodes are at the sped-up PAL speed due to poor framerate conversion; there is also occasional ghosting. Volume 5 was released on May 4, 2010. Of the two versions of "No Mutant is an Island", this release uses the second version.