I currently have a 2011 MBP, and I'm running iTunes 11 on it. We use home sharing for most of our media in the house (two TVs w/ATV 3s). Most of our iTunes library is on the internal drive-- a 1TB WD drive. We started running a little low on space, so I experimented with attaching a 250GB external hard drive to our Airport Extreme and moved over a bunch of TV shows and DVD rips over to it. This has worked well so far for the most part, and we've been able to save some space on our computer. I'm now considering adding a larger hard drive to the AEBS, but I'm having an issue with artwork that is holding me back from doing so-- For whatever reason, our power has gone out temporarily in our neighborhood a few times in the past week. Every time this happens it has confused iTunes. I get the "!" next to everything I've moved to the ext drive. This is not a huge problem. I've just restarted iTunes, which fixes the problem-- except the artwork for the files on the ext drive no longer shows up. I have to manually go through each movie, click "Get Info", then "Artwork". The image is still there in the info, so I've just clicked "Cancel", and then artwork automatically reappears in iTunes. Is there a quicker way to fix this issue, or a way to prevent it from happening in the first place?