found a page with some information about this album (plus other dragon quest albums.)
http://mitleid.cool.ne.jp/dq4.htm
unless I'm misunderstanding, the tracklist they have is pretty different - 14 tracks, slightly different names? They've also credited Motoaki Takenouchi as an arranger in addition to matsuo.
edit: takenouchi is mentioned on the back scan as well. didn't notice before, whoopz. adding him.