Voyeur was originally featured on the Buddha Promo cassette tape, however this version had completely different lyrics, and was not anything like the version on Dude Ranch.
Voyeur is available on several albums; the original version is on the Buddha Promo. The most notable version is on Dude Ranch. It is also available on the "Apple Shampoo" single. There is a live version on The Mark, Tom and Travis Show (The Enema Strikes Back!).