Music Download

A music download is the transferral of music from an Internet-facing computer or website to a user's local computer. This term encompasses both legal downloads and downloads of copyright material without permission or payment.

Popular online music stores that sell digital singles and albums include the iTunes Store, Amazon MP3, fairsharemusic, eMusic, Google Play, CD Universe, Kazaa, Nokia Music Store, Tune App, TuneTribe, and Xbox Music. Paid downloads are sometimes encoded with Digital Rights Management that restricts copying the music or playing purchased songs on certain digital audio players. They are almost always compressed using a lossy codec (usually MPEG-1 Layer 3, Windows Media, or AAC), which reduces file size and bandwidth requirements. These music resources have been created as a response to expanding technology and needs of customers that wanted easy, quick access to music. Their business models respond to the "digital revolution" by making legal services attractive for users.

As of January 2011, Apple's iTunes Store alone made $1.1 billion of revenue in the first quarter of its fiscal year.