by Rodney Batdorf Babylon 5: Walkabout is one of five picture discs culled from the soundtrack to the Star Trek spin-off, Babylon 5. The disc is approximately 30 minutes long, containing all of the music from the episode sequenced chronologically, but it's real selling-point is how it is specially cut to look a bit like a futuristic gear. For dedicated Trekkers, the shape of the disc, plus the inclusion of all the music from one episode, makes this a desirable collectable.