Derivative works are usually subject to the copyrights of the works they are derived from. If you used samples you were not licenced to use, you'd potentially b

Derivative works are usually subject to the copyrights of the works they are derived from. If you used samples you were not licenced to use, you'd potentially be violating copyright, but I think this is one of those areas where the law hasn't yet caught up to technology. As far as I know, no cases have brought this up yet.