Not all copies of La Sirenetta II are the same. A different EAN barcode on Italian copies turns out to be a clue pointing to a late PS1-era reprint - one that accidentally reveals the Disney/Pixar merger.
Epidemic is my favourite PS1 case, and not because it looks good. It's a glorious mess that tells the entire story of Sony's rushed Black Label rollout in a single jewel case.
Some late PAL Platinum prints of Final Fantasy VIII and IX appear to carry PSP holograms rather than the expected PlayStation ones. Here's how I tracked one down and what I found.