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|Questions on DVI - HDMI - 1394 Firewire|
Q1) Can I connect from HDMI to DVI?
A1) Yes. You will only have the video functionality however. The video portions of HDMI and DVI are "pin compatible". You can use an HDMI to DVI cable or a HDMI to DVI Adapter. Whether or not it will actually work or not requires a bit more complex of an answer. Why? HDCP. HDCP stands for "High-bandwidth Digital Content Protection" (HDCP). It is meant to prevent you from copying content you are not "allowed" to copy. Generally HDMI connectors all use HDCP. They don't technically "have to", but it would be pretty silly to use an HDMI connector without it having HDCP. DVI connections on the other hand, may or may not have HDCP. Computers and LCD monitors for example, can have DVI connections which do not have, or "need" HDCP. Many of the early HDTV's to include DVI connectors do not have HDCP. Some projectors, especially non-Home Theater oriented ones with DVI connectors do not have HDCP. Generally you will need to be sure that both devices use HDCP in order to connect together an HDMI device and a DVI device.
Q2) Can I connect any two HDMI devices together?
A2) Yes. This should work. Some early devices do not have the HDMI connection enabled or may have problems due to imperfect implementation.
Q3) Can I connect any two DVI devices together?
A3) Maybe. If both devices have HDCP the connection should work. If both devices do not have HDCP the connection generally should work. If one supports HDCP and one does not then the connection will generally be disabled by HDCP*. Besides the possibility of HDCP issues there are also three types of DVI. DVI-D is a digital only connection. DVI-A is an analog (VGA compatible video signal) connection. DVI-I has both the Digital connection as well as the analog connection within the same cable. In addition to these three types of DVI there are also two types of DVI-D. Dual link and Single link. Single link supports HD (High Definition) resolutions while Dual link can support resolutions greater than that. Since we are talking about HD usage here, we can forget about dual link for our purposes.
Q4) Can I connect 1394 (DTVLink/Firewire/i.Link) to HDMI?
Q5) Can I connect 1394 (DTVLink/Firewire/i.Link) to DVI?
Q6) Can I connect any two 1394 devices together?
A6) Yes. 1394 has two different uses in Home Theater gear - Audio/Video or just Audio. You should check whether or not your device supports both or just audio. There may be issues connecting devices supporting 1394 Audio/Video with devices that only support 1394 Audio. There is also the copy protection issue (1394/5C) which would not let you record material that you are not "supposed" to.