solud

Here are some schematics. http://www.hardwaresecrets.com/article/149 Edit: I might be able to convince one of our distributors to do something like this at ISC West... Only a few days left... Poker anyone? -s-

My mistake, I meant to type 1 1/2 as in 1.5. The number is the result of dividing 720 by 480 (1.5 or 3/2). 720/480 is not 16:9 (1.78~) but is rather 3/2.

There are connections for playstation controllers for PC. When I was in college I wired an original Playstation controller to my PC parallel port following a diagram found online. Don't even need to destroy the controller, just get a controller extention and plug into that. Once you have the controller wired to the PC, there is a driver available for download (comes with wiring schematic, as it's hobbiest so non-standard) which will allow you to use the Playstation controller on the PC as a standard PC gamepad. It's been so long I don't remember the name, but I know there were a few of them. If you're not into soldering stuff, I'm pretty sure someone capitalized on this and actually marketed a product like this. Search for "Playstation to PC controller" and you might find it. Now, about controlling PTZs with it, as long as the DVR software can communicate with standard Windows game controller APIs for controll, I don't see why you couldn't hook up a DDR foot pad to your newly rigged controller extention and have windows recognize the 'keys', thus allowing you to control a PTZ with it. -s-

640x480 looks better because it follows the 4:3 ratio. The presentation of the image is really the cause of the stretching, since all that would be required by the display medium would be to have it maintain the aspect ratio of 4:3 by stretching the image. 640/480 = 4/3 720/480 = 1/2 Standard television follows this format, as well as many other video signals. HDTV happens to be 16/9 (widescreen). -s-