Discogs.com doesn't list the version you have, though it does list five total cd versions starting in 1994 and last issued in 2018. The one that Chuck references is one of two in the SHM-CD format. Allmusic.com shows your issue was released in 2003.
It is not unusual for Japan to reissue the same title multiple times spaced by a few years. It's a part of the way their reissue program (designed almost entirely for the Japanese market alone) works. Sometimes there is a new master, sometimes previous mastering is used in a different format (SHM-CD, Blu-Spec CD, Blu-Spec CD2, HQCD, UHQCD, etc.) or in a budget reissue version.