[MiLO]

This is what I was going to post:

Spoiler:

1) 12RIVEN Original Soundtrack

- Was a PC version enclosure. PC version released on 04/04/2008.

Release date reference : http://ja.wikipedia.org/wiki/12RIVEN...l_of_integral-
Wiki's dates are correct, I double checked with a bunch of other sources including official website.

2) 12RIVEN -the Ψcliminal of integral- Arrange BGM

- Was a PC version pre-order bonus. So the release date is also 04/04/2008.

3) 12RIVEN -the Ψcliminal of integral- Soundtrack

- Was a PS2 version enclosure. PS2 version released on 03/13/2008.

4) PSP version original soundtrack. Enclosed with limited edition. Release date is 04/16/2009.
Suppose to have 30 tracks.
References:
http://www.jp.playstation.com/softwa...cf0020015.html
http://vndb.org/r2801

But after visiting this page I'm not sure if PS2 and PC soundtracks are really attached to those platforms, exclusively. I mean judging by all the info gathered it looks like they could be interchangeable. Either one could be with either PC or PS2 version.