Packages
From SimsWiki
This article describes the specifics of the package format used in SimCity 4 and The Sims 2.
Format
(see DBPF)
Compression
When reading a DBPF file, the first thing you should do is check to see if any chunks inside are compressed. This is done via the DIR resource.
For example code and a description of the mechanics, see DBPF Compression.
Directory Files
These are used for compression lists. See E86B1EEF
This article is imported from the old MTS2 wiki. It's original page, with comments, can be found at http://old_wiki.modthesims2.com/Packages