Apple has released iTunes 10.5.2, with some improvements and bug fixes to 10.5.1.
New to iTunes 10.5.2 are:
iTunes 10.5.2 includes several improvements for iTunes Match and fixes an audio distortion problem when playing or importing certain CDs.
Last month, Apple released iTunes 10.5.1 with iTunes Match feature.
iTunes 10.5.2 is available from Apple Software Update or from iTunes page.
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