The downloadable products we sell (soundsets, samples, midi & vocals) can be used in your releases without paying any additional royalties to the rights owners. If there are ever any exceptions to this rule then the terms of the exception will be made very clear on the relevant product page. When you buy a product from us, the price includes a license to use the samples/midi/vocals/sounds/loops in your music releases, royalty-free. Please keep your receipt as proof of purchase.