Knights in the Nightmare Battle Theme Collection

This isnt a request for the album per-say but more so a question about it. Is the album redone music from the game or just an album of the battle music from the original ost? Trying to figure that out so I can go get it seeings how the original is already available.

Knights in the Nightmare Battle Theme Collection – VGMdb (http://vgmdb.net/album/28284)

This should be the information on the album but it dosent say which it is on the site and sifting through google search isnt yielding much.

COCX-36233~4 | Knights in the Nightmare ORIGINAL SOUNDTRACK – VGMdb (http://vgmdb.net/album/18702)

Pretty much the same as disc 2, except the Battle Themes iTunes release has an arrange track added at the very end and all the tracks are two seconds off the CD release.

Word, thank you.