i.LINK Terminals for D-VHS Recorders IEEE 1394 (i.LINK) digital interface terminals with DTCP* content protection technology on the front and rear of the HM-DT100 and HM-DH5 allow you to easily connect with i.LINK compatible devices such as a MiniDV or high-definition camcorders for convenient digital-to-digital dubbing. You can also connect the HM-DH5 with a Digital Set-Top Box (STB) to transfer and record HD and SD broadcast digital signals**. * DTCP (Digital Transmission Content Protection) protects digital content from unauthorized copying. Copy-protected contents cannot be recorded via i.LINK terminals. Connected digital devices must be DTCP-compatible to playback copy-protected digital content. ** Service depends on whether the digital stream provided by cable systems conforms to the ATSC format.