The discs are printed with MAU-9001~2, and MAU-9001 appears a couple of times on the outer packaging. But the discs are also printed with AD-0004~5, and the tracklist pages in the booklet only refer to the discs with AD-0004~5, not MAU-9001~2.
There's also an earlier Artdink release with the catalog number AD-0003.
Looks like this one has two sets of catalog numbers.