nah because the HDD your putting in is legit, if you took it out of a old casing of an original 360 top loading version....only thing is you will void your HDD warranty but you are not doing any such piracy all you are doing is removing the old casing to transfer to slim. trust me when my 360 went on the fritz i wasn't trying to spend much money for another 360 especially if i had a 120gb already...so thats what i did. i traded in some games and such and got the 199 version for 75 bucks and dropped my 120gb right in.