Importing Windows Media Audio files with iTunes for Windows
With iTunes for Windows, you can import unprotected Windows Media Audio (WMA) files to your library.
iTunes does not play unprotected WMA files, but instead converts the files to the file format selected in Importing preferences.
iTunes for Windows cannot import or play WMA files that are protected by Windows Media Digital Rights Management (DRM). These files usually come from other online music stores. Additionally, Windows Media Player encodes CDs to protected WMA format by default, though you may change that setting.
Note: iTunes for OS X does not have the ability to import WMA files.
A note about copyright
iTunes software may be used to reproduce materials. It is licensed to you only for reproduction of non-copyrighted materials, materials in which you own the copyright, or materials you are authorized or legally permitted to reproduce. If you are uncertain about your right to copy any material, you should contact your legal advisor. See the iTunes Store Terms of Service for additional information.