myFairTunes (download here)


Pros:
* Free ware.
* iTunes DRM removal software and converter for .m4p music.
* 375 KB mini-sized, won’t eat up any memory when runs on low-equipped computer.

Cons:
* Limited output format supported, only .mp3, not a complete DRM removal software.
* No output preference settings, no music quality and file size profile supported.
* Doesn’t support converting DRM video files.
* Not easy installment, requires Microsoft .NET Framework 2.0.
* No upgrade for a long period since 2007, supports iTunes version max 7.5.0.


QTFairUse (download here)


Pros:
* Free ware.
* iTunes DRM removal software and converter for .m4p music.
* Supports drag and drop, batch conversion mode.

Cons:
* Limited output format supported, only .m4a.
* No output preference settings, no music quality and file size profile supported.
* Doesn’t support converting DRM video files.
* No upgrade, no iTunes 8 supported, not a well-designed DRM removal software.



Aimersoft Media Converter (availible here)


Pros:
* Almighty DRM removal software for both iTunes "fair play" and Windows Media “plays for sure” DRM system.
* Integrated powerful DRM media convertor --- Converts audio to audio; video to audio; video to video.
* Wide range input & output formats supported.
* Multi-thread intelligent parallel conversion, automatically detect DRM protected files.
* Hi-Fi with ID3 well reserved, 10X faster conversion speed.
* Life-long free self-upgrade, online after service and tech-support 7/24

Cons:
* Neither Windows Vista 64-bit nor Mac OS supported.
* Needs iTunes, Windows Media Player, and Real One Player installed when converts the corresponding library.
* Motivated to be an advanced DRM removal software by offering user DIY experience, however, occasionally results in convert error, further improvement is needed for perfection.



Conclusion


For folks who have only few iTunes .m4p music need to convert or are being on a temporarily tight budget, the free DRM removal software myFairTunes is definitely your premier choice.

But for those who want to stretch over both iTunes .m4p music, m4b audio book, m4v video / movie, and other DRM protected .wma music and .wmv video, the all-round DRM removal software Aimersoft Media Converter is undoubtedly worth it.