.jp2 ya para king ISO / IEC 15444-1 conforming files, at .jpx ya para karing extended part-2 specification, a mibulalag antimong ISO/IEC 15444-2, kabang ing MIME type , image/jp2 ya. Mangailangan yang misnang karakal a panaun king pamaglako pangasiksik (decompression) kesa king JPEG, at paintulutan na ing mas matas a uring pamanguldas