Problemas Com .wma

[lampih]

aí galera... eu recebi uns .wma de um amigo, ai quando fui escultar abriu o internet explorer aparecendo isso aqui sobre a liçeca:

Welcome to Windows Media Personal License Migration Service.

You have reached this page because you are attempting to do one of the following with content that was copied from CDs:

Restore the content on a computer or operating system that has been upgraded, or

Use existing content on another one of your computers.

PLEASE NOTE:

If you re-install an operating system or install a completely new operating system on a computer on which you have previously maintained licenses, that computer will appear to be a new, unique computer to this service when you migrate licenses. However, upgrading the operating system will not change the identity of the computer as far as this process is concerned.

Any unauthorized use of the content may be a violation of the law, including U.S. and international copyright laws, and may subject you to civil and criminal prosecution.

If you wish to read our policy page, click the link above. If you want to migrate licenses now, click the Migrate License button. Otherwise, click Cancel.

já apertei Migrate Licence mais não deu em nda... apareceu:

This content has been shared by multiple users on multiple machines and cannot proceed with further migration

alguem pode me ajudar?? o que faço para esculta-las?? valeuz...