US second-hand digital music marketplace ReDigi is preparing to launch in Europe and expand into areas including ebooks and video games.

The company labels itself as the world’s first legal online marketplace for “used” digital music whereby consumers can sell on second-hand digital goods as sites such as Ebay allow for physical items.

When someone sells a song on Redigi, the company moves the music file to its own servers and removes copies from the user’s computer. The buyer can ...