BAHAHHAHAHAHA
From my FAQ:
Q: I've finished the upgrade and now it's scanning my media files. How long does THAT take??
A: Ummm, how many you got? I can take anywhere from 30 seconds to 10+ hours. BEFORE doing the upgrade, if you have a lot of media, you may wish to move them temporarily til the upgrade is finished.
I made a thread about "what should I do to prep for the std OTA" coming. I guess temporarily removing most of your media before updating should be on the list. Even without HOB. Has anyone decided how much media or what types before it starts going over 1 hour?