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Know your digital audio formats--photos

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April 30, 2009 4:09 PM PDT

By: Donald Bell

Digital audio formats - MP3

The MP3 format is the most well known of all the digital audio formats. You can find MP3s all over the Web and they work with just about everything--from your Mac or PC, to your iPod or mobile phone. They're also easy to spot with their .MP3 file extension.

Most online music stores offer songs in the MP3 format, including Amazon, eMusic, Rhapsody, and Walmart. But the most popular online music store by far, iTunes, doesn't sell MP3s at all.