Supernatural (2007) has 3 catalogued DVD editions, from Warner Home Video, released in 2007.
Warner Home Video(2007)
Keep Case · Vol. 2 · The Complete Second Season
085391126232
Box Set · Vol. 2 · Deluxe Widescreen Presentation
Slipcover · Vol. 2 · Deluxe Widescreen Presentation
All editions of Supernatural (2007)