Sixth DVD release from anime series "To Aru Kagaku no Railgun," a spin-off series of "To Aru Majutsu no Index." Features episodes 16 through 18. Limited edition includes a novel "To Aru Majutsu no Index SS," description of "To Aru Kagaku no Railgun" (12-page booklet, subject to change), and a bonus CD-ROM with a radio program "To Aru Radio no Railgun" (MP3).