The suit has been brought against MusicCity, Grokster and Empowerment which provide users with the facility to trade music and non-music files through peer-to-peer (P2) networks. MusicCity and Grokster were also named in a recent suit brought by the RIAA and MPAA.
In September of this year, the NMPA struck a deal with Napster in which Napster agreed to pay $26 million to settle the dispute. The agreement includes terms under which songwriters and music publishers will license their music to Napster's forthcoming subscription-based service.
MusicCity said that it is “vigorously” defending any lawsuit of this type which may be brought against it.