HI,
Angel Season 5 was orginally released, as a cardboard box, with three Amaray cases, each housing two-discs.
Then, it was released, as the standard "Buffy/Angel"-style packaging, ala books, with those horrid sleeves that don't really protect the discs.
It seems, this is the final chance to own Season 5 before they withdraw it, and they are re-releasing it as the standard "Buffy/Angel" book-style packaging, that the rest of the series has been released in.
Pooch