It was one year ago so I really don't remember why I selected January 12, 2010, but I assume it was the date when this album became (briefly) available at the official online shop, because there was
another entry with the same date. We can find a little evidence at the bottom of
this page.
If the scan says so, however, I set the release date to December 27th, 2009 (it was the first day of Akibahara Denkigai Maturi 2, for the record). FUTAć»ANE should have the correct release date, since it matches what
the OST official site states).
This entry has to be December 28th, 2009, based on
this page, maybe.