I should've asked this long ago to see if anyone else had similar experiences, but wasn't sure if anything could be done or looked into without taking the iMac into an Apple store for investigation. I'm hoping someone has an idea I haven't tried that might help me out here because it's getting more frequent and more frustrating. I've had my iMac for just about 3 years and over the past year or so it's started bogging down in iTunes. I don't know if it's due to the size of my library, but when trying to download just about any kind of file through the iTunes store the iMac will come to a screeching halt and will have to be forcibly restarted. This occasionally causes the iTunes library file to become corrupted and I have to restore it from Time Machine in order to get everything back. I can't ever go and just update all my apps at once anymore, nor can I download multiple episodes of a podcast without fear of it crashing everything. It's gotten to the point that when I have digital downloads from blu-rays I will redeem them on my MBP and then transfer them over to the iMac from a USB drive. Repair permissions does nothing and that's unfortunately the extent of my troubleshooting for the most part. Any advice would be very much appreciated. I'd like to be able to download from iTunes in peace, especially with Match (hopefully) on the horizon.