The DVI switching is completely independent of all other video sources - the 990 will not convert any of the analog video signals to DVI. Sorry.

There's been a lot of debate back and forth about the topic of DVI and HDMI, and I'm going to be lazy and sum it up by copying a paragraph from my review .

Some people online have expressed concern about Outlaw's decision to incorporate DVI switching in lieu of HDMI – HDMI is, after all, the almost guaranteed interface of choice for Blu-Ray and HD-DVD (or for a single unified format, if the talks currently under way are successful). I've been doing a good bit of research on this issue, since it is so fiercely debated, and here's what I've come away with. First, an HDMI implementation produced today is almost certainly not going to be hardware compatible with Blu-Ray, HD-DVD, or any unified HD video disc format – the standards for the HDMI audio support under those formats remains incomplete. For that matter, SACD may not be compatible (Sony has granted permission for SACD to be transmitted across HDMI's audio path, but that will be incorporated into the next version of HDMI). Basically, HDMI as a digital audio connection is still maturing, and producing a product with the current generation of HDMI is very likely to leave consumers with an incompatible product in a year or so. So what about the video switching aspect? There has been trouble reported about losing blacker-than-black data when HDMI sources are connected to DVI displays, so can the Model 990 switch HDMI? The Model 990's DVI switching is a pure signal pass-through system (I think of it as a "mechanical" switch, a way of swapping cables for me, although that is technically somewhat inaccurate). This means that the pin-compatibility between HDMI and DVI will allow HDMI signals to pass through DVI adapters and the 990's switching without any change to the data, meaning that blacker-than-black data in an HDMI source will survive to reach a display. If that display uses a DVI input and you lose blacker-than-black data at that point, that is an issue unrelated to the Model 990. If the display has an HDMI input, the Model 990 would be a purely transparent portion of the signal path leading to the display and no data would be lost. For switching of digital video sources, the Model 990's DVI inputs (which can be assigned to any video inputs) and output are a great solution.