PLEASE HELP ME RIP Ratatouille .DGA map and model holder

[SniperDude2745]

I have started ripping Ratatouille: The Video Game and came across the main source of data. The maps and models are stored in .DGA files as well as textures. These .DGA files are an unknown format and might be a compressed archive but maybe not because I couldn't find the file directory in the hex text. They are confirmed to have textures and they seem to be more of a 3D scene file with multiple 3D models, similar to .mb (Maya Binary) or .blend (Blender Scene File). The .DGA files are located in two separate folders WORLD which probably contains the map data (scripted sequences, moving platforms, entities, etc.) And the DATAS folder which seems to contain other stuff, like models, textures and sounds. The all files in the WORLD and DATAS folder can be downloaded here as samples. 

http://www.mediafire.com/file/x1phbpkxj7tfd98/WORLD.zip
http://www.mediafire.com/file/b699bhyz3btjog7/DATAS.zip 

 Help me crack this format and keep me posted please.