First things first: The books included in this package are in german only.
They circle around videocompression and cover all codec-parameters for Xvid, DivX 5/6, x264, HDX4 and all counterparts in meGUI. You'll also find some articles which usually are subjects to change from time to time, right now it's about High Def, video interfaces and cd/dvd-burning of videos. Not to forget: a glossary brings some definitions of all important terms in videocompression. What else? Go and find out for yourself.
The format of all books is DNL, an RTF-based thing, which allows some nice features, the licence is free for all, even if you want to put some of the stuff along with a product like a hardware-player - as long as you mention the author. More details in the impressum of the book.