Now here's what each converter does, so choose the right one:3dsToM2.exe : converts into an unanimated model without collision (good for armor, items etc)3dsToM2.exe (other version): converts into an unanimated model with collision (doodads, trees...)Neodex (google it) and MdxToM2.exe: exports animated models out of 3dsMax and converts these mdx files into animated models without collision (characters, creatures...)