CompuServe Messages

VideoVGA et al

    16-Jan-94 10:03:09
Sb: #76613-VideoVGA et al
Fm: Conrad Stolze 72110,1263
To: Bailey Brown 73020,3442
Bailey, We use a VideoVGA in our training room for the instructor's workstation, and it supports all the resolutions you asked about. Yes, it has S-VHS in and out. It is a Tseng ET-4000 board which means that almost all software would support it, as the ET 4000 is probably the "most popular chipset of all time". Solid? Well we run AutoCAD R12, AutoCAD Release 12 for Windows and 3DS3 on it for training with only one MINOR hitch. The VVGA uses a TSR program to allow you to adjust the screen centering, etc. and that TSR will occasionally bomb AutoCAD R12 (DOS). A more expensive, and possibly better, solution would be the Truevision Bravado 16/Bravado Encoder combination. The Bravado allows realtime display of Video-in-a-window on your VGA screen, and the Bravado encoder allows recording of 800 x 600 resolutions (the VVGA is limited to 640 x 480). Other boards? There are boards from Visonetics (a VVGA clone), Willow, Cardinal, Magni, and a slew of others. In addition, there are about as many external conversion boxes that work with ANY SVGA card. These external boxes range from low-end to very high end in price. Now, for the bad news, I would recommend that anyone go out somewhere and physically look at ANY recordable VGA "system" before purchasing. Recordable VGA boards are not a "broadcast quality" solution by any means, and there are inherant overscan/underscan problems that await the user. For instance, our VideoVGA overscans vertically quite a bit. In AutoCAD (DOS), we lose one or two of the AutoCAD command lines off the bottom of the monitor. I'm sure there are other solutions out there, so I'll be interested to hear what the others have to say. Chuck