Die Hard 1 and 2 are from the original release since they are copyrighted 1999 both anamorphic WS and in 5.1 surround sound each with 1 featurette, trailer, cast and crew infos.
Since Viva didn't originally own the rights to distribute
Die hard with a Vengeance (released locally by Solar), im sure we all know this already
(and di ko lang alam pano na-transfer ang rights
) , this DVD is from the remastered 2007 re release with anamorphic WS and Dolby Digital 5.1, Thai, and DTS Tracks (as per label), no features.
Die Hard 4.0 is the single disc release, not the unrated, with Anamorphic WS, DD 5.1, Thai, Commentary (B. Willis, Dir, Editor) and DTS tracks. Features: Deleted Scenes, Gag Reel, Music Vid by Guyz Nite and Behind the Scenes with Guyz Nite.