Is anyone familiar with the Goketsuji Ichizoku/Power Instinct soundtrack series?
After the Groove On Fight soundtrack, which I believe was the fourth in the series, I'm a little confused as to how many more soundtracks there are (The soundtrack details on various websites weren't as helpful as I had hoped). I think there were only two more Goketsuji Ichizoku/Power Instinct games after Groove On Fight, the two Matrimelee games, so I thought that there would only be two more soundtracks after Groove On Fight. However, I'm seeing four other soundtracks besides the first four (Power Instinct, Power Instinct 2, Power Instinct Gaiden, Groove On Fight).

I'm pretty sure that two of them are the soundtracks to Matrimelee and its sequel, but I have no clue what the other two might be.

Help?

EDIT: Alright, I think I've found most of the answers to the questions I asked yesterday, but I'll jot down what I know just in case someone else comes along with similar questions:

Essentially, one of the Matrimelee soundtracks I located was the Matrimelee soundtrack that was part of the the Goketsuji Ichizoku/Power Instinct box set. It's missing three tracks from the original Matrimelee soundtrack, which is odd because the tracks that are missing are not voice/sound effect tracks. Other than that, it's more or less the same. The other, different looking Matrimelee soundtrack I found might actually be the original Matrimelee soundtrack with some sort of slipcase over it, though it's hard to tell at this point. Of course, the other Matrimelee soundtrack is the sequel's soundtrack.

SECOND EDIT: Well, it looks as if there are three soundtracks for the Matrimelee game: 1) The original, 2) the one from the box set, 3) one that came bundled with the PS2 game. I don't know what's on it yet, but I took a chance on it hoping it would be like the original. So, a third edit will be made with the results.