An iPod Touch fan write to me about this problem, and I make this guide for the iPod Touch fans like him who encountered the same question.
Question: I have protected WMV movies and I want to convert them and enjoy them on my iPod. What should I do and how?
Answer: You need drm remove media converter to remove the DRM from WMV and convert them to right audio fromats supported by iPod, e.g. MP3, AAC, WAV etc.
This guide tells you not only how to remove DRM from WMV to MP3 and WMA etc. with DRM Converter!
Software: Aimersoft Media Converter
Many people want to enjoy their DRM protected music and movies (those buy from online media store as iTunes, Napster, Pandora, Spiral Frog, etc.) with more players and share with family and friends. However, how to remove drm from WMV, WMA, M4P? there is a easy way to remove DRM and convert the protected media to AVI, MP4, MP3, M4A, WAV, WMA, OGG, APE, AC3 for most popular digital players as iPhone, iPod, Creative Zen and mobile phone.
Note: It can not only remove DRM from WMV, WMA, iTunes etc. but also support the conversion among all common unprotected formats
Step 1 import target file by clicking “Add” or directly drag-drop them into the main window. The default set makes it works well with your PC without any extra configuration, what’s more, the batch conversion mode supports input several files at one time.

Step2.The default settings make it perfectly compatible with your PC without any need of reconfiguration. However, you can also customize the parameters of your output files.
Click the drop-down list to select the format you want, and you can also click the box ”Audio only” to only extract audio.

When all these steps done, hit “Start”, Aimersoft Media Converter will process forward under your command with stunning speed and high output fidelity. You can easily get the DRM free movies after finish removing DRM from your protected files.
Note: If you convert iTunes DRM protected file, please pay attention to the notice below.

OK. You remove DRM from WMV with DRM Converter successfully.
You can use it as DRM removal software to remove DRM from protected movie and music, and also convert any common unprotected audio and video to the target formats (MP4, MKV, MPEG, WMV, 3GP, AVI, MP4, MOV, FLV, MP3, AC3, OGG, APE, etc.)
This DRM removal software allows you to highly customize the DRM removing and other media conversion, you can set the parameters of output file such as resolution, bit rate, sample rate, etc. With this almighty DRM removal software and media converter, you can easily enjoy your OWN movies and songs with any player like iPhone, iPod, PSP, Zune, Creative Zuen, Archos, etc.
Just download the DRM Converter to remove the DRM from WMV and other formats.