The insert can be reversed to display alternative artwork. It came with a survey card.
1. Front
2. Back
3. Reverse front
4. Reverse back
5. Disc
6. Front of manual
7. Back of manual
8. Front of survey card
9. Back of survey card
Thanks to Felix M. C. Li (image 1), CDcovers.cc (image 2), Anonymous (images 3-5), and Bigmanjapan (images 6-9).