SPECO 4 Channel Internet Ready Digital Viedo Recorder w/160GB Hard Disc Drive DDNS equipped - For easy network/Internet operation on both static and dynamic IP addresses CompactFlash card compatible - Quickly backup files 160GB removeable and interchangeable hard drive Auto detects video input (NTSC/ PAL) and supports combined use of color & b/w cameras M-JPEG compression high quality digital video recording (NTSC: 30fps/ PAL: 25fps)