Ilwrath wrote:
Also, keep in mind, if you're switching from NTSC to PAL, the display device you're using needs to support 50khz.... (Many modern NTSC TVs don't... Older TV's didn't specifically support 50khz, but that could usually be fixed by a turn of the VHOLD knob.)
The reverse is also true, although all the Amiga monitors I've owned seem to be able to handle it fine. It's just TVs you need to worry about.
I once wrote a CLI command to switch into NTSC mode to make games full screen. It's only a couple of lines of ASM. There's a single bit in a graphics chip register that controls it. Although that means you have to run the game from Workbench but a reset-proof version could be written quite easily.