Complex sentence: The set consists of 50 CDs, spanning Merzbow's career from 1979 to 1997, as well as other paraphernalia such as a t-shirt, posters, book, medallion, and two CD-ROMs.
Split into simpler sentences: The set consists of 50 CDs, spanning Merzbow's career from 1979 to 1997. The Merzbox also contains a t-shirt, posters, book, medallion, and two CD-ROMs.