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Re: Copy: Illegal switch error

Posted on 2014-09-09, 17:34

Thanks, but those are all just ways to circumvent this behavior, which I already did. The point is, I can't install this game from original floppies in DOSBox without modifying the .bat on the floppy (as it deletes the originals of that copy command after the copy) despite it only using standard MS- …

Copy: Illegal switch error

Posted on 2014-09-09, 16:13

Ran into an illegal switch /b error when installing the game AIV Networks from floppy images. Screenshot: http://i.imgur.com/oQrO6gQ.png The culprit is this line in the installation bat copy toto00.vo/B+toto01.vo/B+toto02.vo/B finfo15.voc I was able to manually fix the installation by adjusting the …

Re: Video capture aspect ratio problems

Posted on 2010-03-16, 17:52

Having said that, the video captures and (internal) screenshots are in 320x200 (or a multitude of that) and the game itself is too if aspect=false. Now, I get the game was programmed that way and is also processed by the graphics card like that. But, if no one actually saw it like that, how is this …

Re: Video capture aspect ratio problems

Posted on 2010-03-16, 16:31

http://www.mobygames.com/game/dos/star-wars-x-wing/screenshots/gameShotId,146351/ look at corner radars Mh, thanks, this does indeed show such an approach. I'm curious though why a VGA game has a native resolution of 640x400. It also means those screenshots at MobyGames are wrong in the sense that, …

Re: Video capture aspect ratio problems

Posted on 2010-03-16, 15:29

Yes, minus scaling artifacts. Thanks, I think I got it now ;) Having said that, the video captures and (internal) screenshots are in 320x200 (or a multitude of that) and the game itself is too if aspect=false. Now, I get the game was programmed that way and is also processed by the graphics card …

Re: Video capture aspect ratio problems

Posted on 2010-03-16, 15:03

What's a 3:2 screen? Replace all 3:2 with 4:3, a regular monitor. On a 4:3 screen using a resolution of 640x480 you get square pixels, simply because 4:3==1,333==640:480==1024:768 etc. When you display a 320x200 mode on such a screen, the pixels are not square because 320:200==1,6 (pixels are then …

Re: Video capture aspect ratio problems

Posted on 2010-03-16, 14:12

Read again what hal posted, that's exactly where the non-square pixels come into play (320x200 cga DID fill the full 3:2 screen without black bars). 320x200* can easily be displayed on a standard 4:3 CRT monitor. We might be misunderstanding each other. I know CRTs could display the picture. What …

Re: Video capture aspect ratio problems

Posted on 2010-03-16, 13:11

To display 320x200 (8:5) on a 4:3 monitor using the full area it has to be stretched vertically. The pixels are not square in this mode. And that's what the hardware back then did. Well I'll be honest here and say I can't remember what the games looked like back then. PC-Man was one of the earliest …

Re: Video capture aspect ratio problems

Posted on 2010-03-16, 10:54

320x200 games are always 4:3 even though the video mode has pixels in a "16:10" ratio. Now you've got me confused again. Take a look at these screenshots taken from windowed mode with the Windows snipping tool (so the resolution matches what I actually see on the screen). This is a 320x200 CGA game …

Re: Video capture aspect ratio problems

Posted on 2010-03-16, 08:34

Thanks, I see. So it's not an aspect ratio preservation per se as known from lets say, DVD playback software, but rather a special fix for a certain type of display. That didn't get clear from the manuals and wiki, at least not to me. Maybe reword it a bit for a future release to avoid similar …

Re: Video capture aspect ratio problems

Posted on 2010-03-15, 23:50

Okay, I'm sorry, I somewhat messed up. I was right about the game displaying in a different resolution than the captured video was in. But, the error is the other way around. The videos were correct, the actual gameplay wasn't. CGA games (which should be 320x200) were showing in a 640x480 (or …

Re: Video capture aspect ratio problems

Posted on 2010-03-15, 22:12

Plus, it's just not an accurate capture. Yes, it is. If the game is 320x200, dosbox captures it as that. I don't think .AVI has a standard way of defining the aspect ratio. If you had properly read my post you would have noticed that that's exactly NOT what's happening. The video resolution (and …

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