@justinbeaird A side note, if you use Kodi or RasPlex, they both have a very easy setups for video calibration. You move the a marker in the top left and bottom right until it fits your screen. Then they show you a square, and you stretch and expand it to make it a perfect square. These two methods allow them to maximize your screen space and have the proper aspect ratio for videos.
As I mentioned above, you shouldn't have any issue getting everything on the screen. It just doesn't look right. The black bars at the top and bottom aren't the end of the world, but are noticeable when the 4:3 games have a black border visible on all sides of the image.
Here is an image so you know what to expect.
alt text
The black box and green box are both 4:3. The red box represents the 3:2 (720x480) signal being sent. Which the GBA emulator assumes is completely visible.
The black and green boxes are the typical 4:3 area on a CRT TV, and again the red area is the 720x480 signal. From my understanding most TVs work like the green box shown above. The signal is a little wider, so you lose a little on the sides, but there isn't any critical information.
The problem is, that red box is the area Gameboy Advance uses, so you lose view of lives and health meters that are in the corners of most games. My setup last night was like the black box shown, where the red box fits entirely within it, and appears like a letter box. You can see there are small gaps at the top and bottom. When a SNES game played in the middle, it isn't 4:3, but really 8:7, so it's slimmer than the green box shown in the middle. You can see though, the green box has a gap on all sides within that black box. So imagine a square image within the green box, but the black box representing your view area. That is what you'll experience unfortunately. It's what I'm hoping to resolve.
Personally I think the GBA emulator should shrink the red box to be within the green box, when a GBA game is launched, otherwise leave the display as the green box so that 4:3 games fill the screen top to bottom. :)