Originally posted by fallenangle
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Usually the only ones that are easy to find are the two cheaper ones you have already seen. (Big clear square thing, and small VGA cable with blue/black box in the middle) If I had to choose between these two I would probably choose the big clear square one, as its bascially a cheaper made copy of the official VGA box - right down to the almost identical circuit board layout! Here some pictures of the two, Official VGA on the left, Third party VGA on the right:-


It also has S-Video and Composite outputs should you need them, and best of all you can use your own VGA cable of any length - this could be quite important if you need that bit of extra length to connect your Dreamcast up to your TV/Monitor. With the other (Blue/black box in the middle) cable you would have to get a VGA extension cable if you wanted a longer length.
Just be sure to get a working one though, as some of them have a broken switch from the factory (This applies to both of the cheaper VGA boxes)
There were also a few other third party VGA boxes aswell - id imagine there just as good.
Its important to realise however that there is very little difference in picture/sound quality between all the VGA boxes (assuming they are all working perfectly of course) as the Dreamcast VGA output is native to the console - in other words the cable isnt really doing 'all of the work'. All there really is (component wise) inside a VGA box is a couple or resistors, capacitors and diodes - and two chips to help buffer the horizontal and vertical sync signals (Which actually are not even strictly neccessary!)
Blimey I do waffle on!
Good luck in your decision

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