Microsoft DRM woes
If you bought music from Microsoft’s MSN Music Store, you need to make sure you have it installed on the computer and operating system version that you intend to use for the rest of your life before August 31st 2008. Or you need to burn it to CD and reimport it into your music library as MP3 tracks. Why? Because Microsoft is going to switch off their authorization servers for this system of DRM (digital rights management) after that date, according to ars technica.
Afterwards, it will not be possible to upgrade either your computer or the operating system version and continue to listen to your music. This illustrates the risk you take if you buy music protected by DRM, even from the the industry’s biggest players – any time they lose interest in a market, you lose your music.