2010年1月21日14:54 'CuSO4' Yung <cuso4@cuso4.com>:
> 2010年1月21日13:01 Hitoshi Doi <doi@usagi.org>:
>> Only My Railgun
>> This CD+DVD package contains the opening song to the TV anime
>> To Aru Kagaku no Railgun (とある科学の超電磁砲[レールガン]).
>> Songs by the group fripside (lead singer Nanjou Yoshino).
>
> Too bad this OP just got replaced by another one.

The "other one" I mentioned is "Level 5 - Judgement Light-", also by fripside.
PV
http://www.youtube.com/watch?v=dKlIhBPLYCA
Making of
http://www.youtube.com/watch?v=aLIAQ193L2k

-- 
'CuSO4' Yung