Just for the record; in the future if you have another game in .mdf, you can extract the contents with PowerISO (gives you a free trial, then is like WinRAR, where it bothers you to buy a license, but you just go "err... no".) then repack it into another format, i.e. .img or .iso.
Platinum trophies: Uncharted, MW2, Uncharted 2, Resi 5, AC II, Fallout 3, Batman: AA, CoD: WaW, BlOps, FFXIII, BioShock, L.A. Noire, Deus Ex: HR, Uncharted 3, Heavy Rain, Batman: AC, inFAMOUS 2, The Walking Dead, Virtue's Last Reward, Borderlands