Complex sentence: One year later, The Donnie Yen Collection DVD were released on May 29,2006 at 4 disc set including two films they were "Once Upon a Time in China II" and 2 disc platinum edition "Iron Monkey".
Split into simpler sentences: One year later, The Donnie Yen Collection DVD was released on May 29,2006 in a four-disc set. The set included two other films: "Once Upon a Time in China II", and a two-disc platinum edition of "Iron Monkey".