So I just tried reinstalling Lion off of a DVD backup that I made, and it turns out that it's broken. I don't have a spare external DVD drive, so I'm SOL with that... The Lion Internet recovery is telling me that the installer will take several days to download, so I'm planning on taking the system in for repairs in the next couple of days. Is there some way that I can load up the DMG or whatever else files I got from the App Store on to a ~8gig USB flash drive so I could use it to install Lion in case I have to do it again in the future? I figure that multiple USB ports will be more reliable over time than a single DVD drive that can fail at any moment.