Amazon has launched its song-matching software, similar to Apple's iTunes Match program, now that the online retail giant has received licenses from all four major labels. The service will scan a user's music files on their computer, find matching versions of the tracks in Amazon's servers and store them on their cloud drive.

In addition to licensing agreements with the big four labels, Amazon announced deals with hundreds of other publishers and distributors. The licenses allow Amazon to create new versions of its users' music files. The service will match all songs bought from Amazon MP3 for free, as well as up to 250 songs ripped from CDs or bought from other digital stores. After the 250 track limit, Amazon will charge $24.99/year to match up to 250,000 songs.

Once a user's music is stored in the cloud, it can be streamed from your web browser, a Kindle Fire or Amazon's apps for mobile devices. Amazon will soon be launching cloud access for Roku Internet TV boxes as well as the Sonos home entertainment streaming system.