This paper presents an HDTV video decoder core that is able to decode MPEG-2, MPEG-4 AVC and VC-1 formats and is fully compatible with the Blu-ray Disc standard. A novel re-configurable architecture is adopted to achieve reduced hardware, and a data compression method suitable for all video decoding standards is applied to reduce memory data usage and access bandwidth. The circuit volume of the core is 1.5Mgates with 90nm CMOS technology and operation clock frequency is 162MHz for 1080i at 30fr/s.