The cutscenes were remastered, the pop-in reduced and they were output as as high resolution TIFFs one frame at a time to improve the quality over the originals
They were not, contrary to popular internets remastered in "HD" and this was always advertised as a DVD disc, which obviously can't play HD content anyway.
Apologies to folks feeling ripped off, but the false advertising claims are well, false.
Watch the remastered ones side by side with the originals to see how much they've been improved.
And hopefully folks can see past our old school graphics and listen to the commentary, which is the important part of that content anyway.