Most binary format files are in Digital Anvil's UTF format and there are people working on deciphering these files. No programs can read them as of yet but when a rough spec is available, I'll be writting some plugins.
The UTF format seems to have some sort of a tree structure with 48 bytes of header information, then a string table followed by binary data. Images appear to be stored in Direct X's dds format, no idea about how the materials or 3d objects are stored yet (probably lists of vectors, normals and triangle references).

Anyway, the format should be cracked soon.

Tim.