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I will also add that many older sample libraries contained uncleared samples, that is, samples of audio that were not cleared for use by the copyright holder of the original work. Many samples in these libraries were simply taken from other works of electronic music, which means a lot of these CDs are no longer officially available to purchase from the companies legally. Many of these CDs are, or at least, were hard to find on the internet before the archive.org collection was made. It should also be noted that the DMCA notice was only targeting a small minority of the whole collection, however it still resulted in the entire archive being removed.