Willow's Demon Database is a feature included in the final three seasons of Buffy the Vampire Slayer on DVD. A DVD-Rom feature, once you place the disk into your computer the program can be downloaded and pages on several of the villains of the series. The start-up features a video of a log-in typed by Willow, and has one of Willow's popular quotes from the first season episode "The Pack" ("We can finish this another time") when the program is closed. The program is featured on the last disks of season 5 and 6 and the final version is on the first disk of season 7.