SoundCloud made its name partly on the back of DJ mixes (both official and otherwise), but you could never take their presence for granted. All it would take is an overeager copyright lawyer and your favorite set would disappear in a puff of digital smoke. That shouldn't be a problem going forward, though. Company co-founder Eric Wahlforss tells Germany's Groove that it's now possible to upload mixes "problem-free." The rights negotiations for SoundCloud Go made all the difference, Wahlforss says -- agreements with copyright holders mean that there won't be any rude legal surprises, whether or not you're a Go subscriber.