Stadium files refpack compression is unusual type 0x90FB, usual it is 0x10FB. Use OsBig editor to extract stadiums from .big and it decompress the files correctly.I got the error "File could not be previewed"
I'm trying with Fifa 08/09/Euro2008 stadiums (Xbox 360) but it gives me that error, and I can't decompress them because NHL Rx2 Patcher gives me the error "FileIO: Error reading from file"