Enterprise was the only Star Trek series to be released in DVD format during the same year that it was broadcast. For the first time in a Star Trek series set, the special features on these discs included deleted scenes, outtakes and audio commentaries. Noteworthy is that the region 2 edition contained special features that were left out on the region 1 edition. Slimline versions of the seasons were released in Region 4 on 18 June 2008 , and in Region 2 on 28 July 2008 . __TOC__