Complex sentence: Generally, many critics erroneously view Creative Commons as a replacement of Copyright, whereas in reality it is a standardized, copyright based solution for those cases where re-use and re-mixing is desired under specific conditions.
Split into simpler sentences: Generally, many critics erroneously view Creative Commons as a substitute for copyright. In reality, Creative Commons-licensed works are still copyrighted and CC is merely a standardized, copyright based solution for those cases where re-use and re-mixing is desired under specific conditions.