After brining the light to digital music the MP3 file format is slowly slipping away as more people are deleting their MP3s faster then they are acquiring them. The two formats that are growing in popularity are, you guessed it, AAC (iTuneÕs file format) and WMA (MicrosoftÕs file format).
In the past year the MP3 digital music format slipped from about 82 percent to 72 percent of peopleÕs digital music collection. NDP MusicWatch Digital is the project that surveys hard drives and provides this information. They have stated that MicrosoftÕs and AppleÕs proprietary file formats have gained about five percent Òhard-drive shareÓ in that time.
NDP has also stated that it may not be that MP3 is losing its popularity but people are finding them as Òdisposable.Ó Another possible trend, that NDP pointed out, that would lead to the change with the MP3 format is a shift from file trading to people ripping their collections of CDs into the default format by what ever program they may be using, iTunes or Windows Media Player.
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CNet - MP3 losing steam?