Silkroad Online Forums

Hey guys if anyone has some spare time on their hands and could help me tweak the media file without corrupting it. I have tried several times to tweak the graphics on the start menu and loading menu etc. i have managed to successfully extract the files, modify them, put them back into a .dat file, and successfully importing them back into the media.pk2 but then when i start the sro client i get the media file is corrupted error...