Protected AAC: M4P File Format

Advanced Audio Coding (AAC) is a standardized, lossy compression and encoding scheme for digital audio. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at many bit-rates.

For a number of years, many mobile phones from manufacturers such as Nokia, Motorola, Samsung, Sony Ericsson, BenQ-Siemens and Philips have supported AAC playback. The first such phone was the Nokia 5510 released in 2002 which also plays MP3s. However this phone was a commercial failure and such phones with integrated music players did not gain mainstream popularity until 2005 when the trend of having AAC as well as MP3 support continued. Most new smartphones and music-themed phones support playback of these formats.

* Apple's iPhone supports AAC and FairPlay protected AAC files used as the default encoding format in the iTunes store.

* Sony Ericsson phones support various AAC formats in MP4 container. AAC-LC is supported in all phones beginning with K700, phones beginning with W550 have support of HE-AAC. The latest devices such as the P990, K610, W890i and later support HE-AAC v2.

* Nokia Nseries and other Nokia multimedia phones: also support AAC format.

* BlackBerry: RIM’s latest series of Smartphones such as the 8100 ("Pearl") and 8800 support AAC.

* The Samsung SGH-X630 plays AAC only as raw files and refuses to play when AAC is wrapped in the MP4 container[citation needed]. It plays LC files as well as HE-AAC and HE-AAC v2 files.Also the d807x only allows for the use of .aac.dm files as ringtones.

Protected AAC to MP3 Audio Converter

AAC is the default audio format of Apple's iPhone, iPod and iTunes. Most of the music in iTunes Store is in AAC format. Sony PSP also adopts AAC as its audio standard format. However, AAC is not supported by all media players. If your media player is not compatible with AAC, especially the DRM protected AAC audio, you have to convert the AAC files to MP3 or WMA, or other unprotected audio formats that can playback on your audio player.

NoteBurner AAC Audio Converter is an excellent audio conversion tool that can help you transcode AAC format to MP3, WMA and WAV formats. Working with iTunes, NoteBurner AAC Audio Converter can convert AAC to MP3, AAC to WMA and AAC to WAV.

NoteBurner AAC Audio Converter is able to convert iTunes M4P and M4A to WAV and unprotected WMA formats.

Utilizing virtual burning technology, NoteBurner Audio Converter can also convert any DRM protected WMA, M4P music and M4B, MP3, rax, MP4, WAV, RA, snd, OGG, AIF music to unprotected MP3, WAV, WMA formats at fast speed and high quality.