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Mike Tyson's Punchout Emulation
Jack Burton:
One more thing to be aware of is that there are timing differences between NTSC and PAL versions of games.
If you play a PAL game on an NTSC system it will result in the game running too fast. This is due to PAL expecting a refresh rate of 50hz instead of NTSC's 60hz. PAL games for nintendo systems were designed to run faster to compensate for this.
The same goes for emulators and roms. If you force a PAL rom to run in NTSC mode it may run too fast. Always check that you are using the right rom from the right region, and that your emulator is set up to also run as the right region console for the rom.
This also holds true for when you use the "sync to monitor refresh" option in mame. It will cause the game to run at the speed that the monitor is refreshing at. This can cause a game to run either too slow or too fast depending on the game.
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