LONDON – A British court sentenced two hackers to 100 hours of community service on Friday for stealing a treasure trove of unreleased music – including Michael Jackson tracks – from the U.S. servers of Sony Music Entertainment.

Officials said that music aficionados James Marks, 27, and James McCormick, 26, used their home computers to access Sony's servers and scour them for Jackson-related material. The pair downloaded nearly 8,000 files, including completed or partial tracks, artwork, and videos relating to Jackson and other unspecified Sony artists.

The precise nature of the unreleased material hasn't been made clear – Sony refused to comment on the case. A statement from Britain's Serious and Organized Crime Agency identified some of the material as stems, which are audio tracks that can be used in mixes and overdubs.