According to Neowing, the DVD & Blu-ray volume 1 limited editions of "Toaru Kagaku no Railgun" will include an extra short anime. It will be released on January 29th, 2010. Short novel episodes of "Toaru Majutsu no Index" will also be bundled with the limited editions of the eight volumes. The episodes are called "Kanzaki Kaori chapter". Teach us Kanzaki-sempai!!!!
Source:
Neowing
Thanks god..... & JCF XD