M4P File Format

Digital rights management (DRM) is an umbrella term that refers to access control technologies used by publishers and copyright holders to limit usage of digital media or devices. It may also refer to restrictions associated with specific instances of digital works or devices. DRM overlaps with software copy protection to some extent, however the term "DRM" is usually applied to creative media (music, films, etc.) whereas the term "copy protection" tends to refer to copy protection mechanisms in computer software.

M4P is the Protected AAC File. AAC is the audio layer from the follow-on format to MP3. The .M4P extension is AAC purchased from Apple's Music Store (iTune) and is protected by a Digital Rights Management scheme.

Features of NoteBurner Audio Converter

* Very easy to use and install; Fast and CD quality
* Use internal burning features of iTunes, Media Player, Real Player, Napster to convert any protected or unprotected music to Virtual CD-R.
* Converts purchased songs for use with iPod, any other MP3 player, mobile phone or PC
* Preserves ID3 tags for artist, album, title names etc.
* Batch mode for converting or unprotecting large song collections
* Super fast conversion: Only needs 20 seconds for a four minutes song

NoteBurner's features depend largely on the abilities of the media player you are using. NoteBurner can control the bit rate, sampling rate and channels, but it doesn't do much else because it operates differently than the other audio converters in this review.

NoteBurner allows audio tag editing and can also extract audio signals from video files by burning them on the virtual drive. But its best feature, and the one that makes it stand out in our review, is the DRM removal that is indispensable when you're having music compatibility issues.