Music producers can use Spectrasonics virtual instruments and sample libraries on any commercial music release (including music libraries) with the confidence that the sounds are completely safe to use. All products are guaranteed 100% COPYRIGHT CLEAN. This means that every sound on a Spectrasonics disc has been pre-cleared for musical use. Once a customer purchases a Spectrasonics product, no additional licensing fees are required to use it in their music. However, some CD-ROM sample libraries require a specific crediting in the liner notes of the music release. Screen credit for Film/TV use is not required.