I borrowed this from my brother-in-law who never really played it.  I can't get mission 7 to load.  It takes me to the mission screen but when I click on proceed it locks up.  I've let it sit for an hour and it won't move.  The disk doesn't have any scratches or anything that I can see.

Is there a way to skip missions to try and get passed this if it's a glitch in the disk?