Amazon announced today that they will launch all DRM-free music download site later this year, citing an agreement with EMI Group, who decided last month that all their music will now be unencumbered by digital rights management copy protection. Warner and Sony are also testing some DRM-free downloads. Tracks without DRM can be copied unlimited times and moved to any device, unlike most what you get on iTunes, who has faced increased criticism regarding their Fairplay DRM. (There are numerous sites out there that teach you how to crack Fairplay.) EMI tracks went DRM-free on iTunes last month. Some music industry experts think that an end to DRM on legal downloads may be the only savior of the spiraling music industry.