The following article is going to show you how to remove DRM from iTunes purchased music and video files so that you can play them on non-Apple portable players like Zune, PSP, BlackBerry, Creative Zen, import them into your Windows Movie Maker project, etc using Media Converter Pro.
Step 1. Download Media Converter Pro, install and launch it. ( free download )

Step 2. Add iTunes M4P M4V files
You can import the DRM M4P M4V files in three ways:
a. Load files by clicking the “Add…” button.
b. Directly drag and drop files to …