The world’s largest music label, Universal Music Group, said it would sell digital music without copy protection, following a move by EMI Group earlier this year.
Some of the artists signed to Universal include 50 Cent, Eminem and Fallout Boy.
Users will be able to purchase this music through Google, Wal-Mart and Amazon’s music stores, but the songs won’t be available through iTunes, the largest digital music store. However, songs embedded with digital rights management will continue to be available on iTunes.
The experiment will run from August to January and will allow Universal to complete research by analyzing sales data.

