Partial request – The Oneechanpon/Zombie Hunters 2

Well, I entitled this request as "partial" because I already managed to extract the files from the game dvd but haven’t yet managed to get them to work.
The files are of XAG extension and after "googling" the subject, I came to the conclusion that the files can only be properly ripped with MFAudio, but I haven’t had any success as of yet…
The game in question is an obscure low-budget game that only got released in Japan by the large nonsensical title of "Simple 2000 Series Vol. 101: The OneeChampon ~ The Onechan 2 Special Chapter ~ (SIMPLE2000???? Vol.101 THE ??????? THE????2???)" and in Europe by the title of "Zombie Hunters 2".
I don’t know if it’s possible to rip XAG files through other means besides MFAudio, if not, I already took the liberty of uploading the files with rapidshare, just in case it serves of any help (besides feeding my wishful thinking…).

http://rapidshare.com/files/104928574/BGM1.rar.html
http://rapidshare.com/files/104930414/BGM2.rar.html

Alternatively, there was a official music CD that came with the latest title in the series, Oneechanbara Revolution for the Wii, that comprises music from all games in the series, but I only request it as an alternative, if the previous can’t be fulfilled.
This site has some info on the CD:
http://vgmdb.net/db/albums.php?id=7347

Much thanks in advance and thank you for your time!