The American regular edition came in a thin cardboard box, supported by a sturdy, plain brown cardboard box inside. It contains a thick case with three discs, front and back inserts, and a manual.
The outer box has a different catalog number and barcode to the limited edition release, but the discs and inserts seem to be the same in both editions.
1. Front of box
2. Back of box
Thanks to MobyGames (images 1-2).