The Japanese collector's edition came with a bonus disc containing documentaries, deleted scenes, outtakes, poster gallery, audio commentary, original theatrical trailers, and one or more Biohazard 4 trailers. The discs came in a DVD case inside a cardboard slipcase with stickers on both the front and the back.
1. Sleeve, case, and discs
2. Front of outer sleeve
3. Back of outer sleeve
Thanks to CD Japan (images 1-3).