I received this in a ps1 lot that I purchased on ebay. The seller had no pictures of the discs in the listing, so I was a bit surprised when I initially opened the case. The disc's label is in monochrome with red lettering. Normally, it is fully colored. You can see a comparison of the two discs in the last photo.
Is this a known variant? Printing error? I've been looking around for info, but haven't come across anything. Perhaps someone could shed some light on this?