Documents

• Foremost among compatible document formats are the proprietary Kindle document formats AZW and AZW1. Kindle can also handle unprotected Mobipocket files in MOBI or PRC format. You can send personal documents to your Kindle in Word document format, officially as DOC but experimentally as DOCX. Further document types include TXT, HTML/HTM, RTF and PDF. The Kindle does not support EPUB as of the time of publication.
  
  

Audio

• There are two ways to listen to audio files on your Kindle: either as audio books or as MP3 files using the experimental audio player. Download audio books from Audible and play them on the Kindle in the AA or AAX file formats.
  
  

Images

• You can store and view images on your Kindle, although the rendering can be somewhat clumsy due to the colored photograph conversion to grayscale display. The Kindle is compatible with photos in JPEG/JPG, GIF, PNG and BMP formats.
  
  

Applications

• There are Kindle applications available for several mobile devices and the computer. You can use any of them read Kindle e-books, either in conjunction with your Kindle or instead of it. Amazon.com supplies a Kindle application for the PC and the Mac, as well as four smartphone systems: iPhone, BlackBerry, Android and Windows Phone. The application also runs on other Apple devices running iOS: the iPad and iPod Touch.
  
  

Operating Systems

• The Kindle itself is compatible with Windows 2000 and higher, as well OS X and Linux -- although features may vary. You can access the Kindle as a removable drive and add or remove files to it accordingly via USB cable. The Kindle battery charges when plugged into the computer, although not until you've ejected or unmounted it. The Kindle may be recognized as an MP3 player in your media software, allowing you to add MP3 files to the Kindle from within a program.