So you cannot sell the music on ebay. A credit is not demanded, but most producers add one and there's no better recommendation. The approach is so different from normal production music libraries. You do not pay per 30 second blocks which can really mount up to a considerable cost. It does not matter wholetones how many times you use the music, Previews on royalty free websites take little time and you can quickly pinpoint the track or CD you need and order and receive the CD the next day, or in the case of a download, instantly. The aim is to cut out all the red tape, form filling and confusing and vague usage restrictions and allow producers to concentrate on the creative process of using good quality music to enhance their productions without the fear of treading on someone's copyright and at an amazing price. That's the beauty of simplicity.