Yesterday my friend whos a New Fan and I decided to hang out and play fallout at his house, but he doesnt have XBL and wanted to try the DLC's so i brought my xbox over, loaded up a file and got an error message saying "some of your content is corrupt" and the pre order gamestop add on and dead money and honest hearts didnt work.
does anyone know what this is and anyway around so i can play my content while offline?

You have to be online to download the content as far as I know, sorry.

no its already downloaded onto my hard drive
but still if im not connected to live i get an error message

Transfer licence-

http://www.xbox.com/en-US/Support/LicenseMigration/Home