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Digital Music & Video Software
A digital audio player (DAP) is a device that stores, organizes and plays digital music files. It is more commonly referred to as an MP3 player (because of that format's ubiquity), but DAPs often play many additional file formats. more...
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Some formats are proprietary, such as Windows Media Audio (WMA), and, to a degree, Advanced Audio Coding (AAC) and MP3. Some of these formats also may incorporate restrictive digital rights management (DRM) technology, such as WMA DRM and Apple's "FairPlay", which are often part of certain paid download sites. Other formats are completely patent-free or otherwise open, such as Ogg Vorbis, FLAC, Speex (all part of the Ogg open multimedia project), and Module file formats.
There are three main types of digital audio players:
MP3 CD Players - Devices that play CDs or downloaded music. Often, they can be used to play both audio CDs and homemade data CDs containing MP3 or other digital audio files.;
Flash-based Players - These are solid state devices that hold digital audio files on internal or external media, such as memory cards. Due to technological limitations, these are relatively low-storage devices, commercially ranging from 128MB to 8GB, such as the 2nd generation Ipod Nano, which can often be extended with additional memory. As they are solid state and do not have moving parts, they are very resilient. In effect, they do not suffer limitations that owners of Hard Drive-based players face, such as fears of dropping their player or fragmentation. Such players are commonly integrated into USB keydrives.;
Hard Drive-based Players or Digital Jukeboxes - Devices that read digital audio files from a hard drive. These players have higher capacities, ranging from 1.5GB to 100GB, depending on the hard drive technology. At typical encoding rates, this means that thousands of songs — perhaps an entire music collection — can be stored in one MP3 player. Due to their capacity and physical size, image and video media support is becoming standard among Hard Drive-based players. The Apple iPod and Creative Zen are examples of popular digital jukeboxes.;
History
The precursors to DAPs were portable CD players and MiniDisc players (neither being generally considered a "digital audio player"). Non-mechanical DAPs were introduced following the popularity of the precursors.
The first non-mechanical digital audio player in the world was created by S.Korea SaeHan Information Systems in 1997. The MPMan F10 was later OEMed to the American market through Eiger Labs. The first non-mechanical unit on the American market was the Eiger Labs MPMan F10, a 32MB portable that appeared in the summer of 1998. It was a very basic unit and wasn't user expandable, though owners could upgrade the memory to 64MB by sending the player back to Eiger Labs with a check for $69 + $7.95 shipping.
The second DAP (but widely considered the first mass market player) was the Rio PMP300 from Diamond Multimedia, introduced in September 1998. The Rio was a big success during the Christmas 1998 season as sales significantly exceeded expectations, spurring interest and investment in digital music. The Recording Industry Association of America soon filed a lawsuit alleging that the device abetted illegal copying of music, but Diamond won a legal victory on the shoulders of Sony Corp. v. Universal City Studios and digital audio players were ruled legal devices.
Read more at Wikipedia.org
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