By Mayo Clinic Staff. Alcohol intolerance can cause immediate, unpleasant reactions after you drink alcohol. The most common signs and symptoms of alcohol intolerance are stuffy nose and skin flushing. Alcohol intolerance is caused by a genetic condition in which the body is unable to break down alcohol efficiently.
About iTunes library files. iTunes uses iTunes library files and your iTunes Media folder to organize and store your music and other media. Your iTunes library files track the media you add to iTunes, how you've organized it, and other information such as playlists, play counts, and song ratings. About the iTunes Library.itl file.
With Home Sharing turned on, you can listen to the music in another iTunes library in your house and copy music from other libraries to your computers or iPhones and iPods. All devices connected via Home Sharing must use the same Apple ID. Home Sharing is good for more than just music, though.