Apple has started a replacement program for a “very small number” of Seagate 1 TB hard drives that may fail in certain conditions. These drives came in 21.5-inch and 27-inch iMacs sold between May 2011 and July 2011. Although Apple is contacting iMac purchasers who provided a valid email address during the product registration process, you can also enter your iMac’s serial number on this page to see if it’s included in the replacement program. As always, back up your data regularly, and be certain to run a backup right before you take your Mac in for the replacement so you can restore onto the new drive. follow link
View Silver Screen Media on Your Apple TV from another Disk
Want to watch movies via Silver Screen that aren't in your Movies folder? Just create an alias in your Movies directory and select that as your Media Directory in Silver Screen's preferences. It will even be automatically mounted if needed when the folder is browsed in Silver Screen. To make the alias, mount the server or other disk in the Finder, locate the folder containing the movies and Command-Option-drag the folder's icon into your Movies directory.
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Apple Replacing Some 1 TB iMac Hard Drives