Editing Nintendo Entertainment System emulators

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* '''.qd format''' (stands for QuickDisk): Only ever used in official Nintendo re-releases. Almost identical to FDS, except QD is a full dump with checksum data. May omit padding.
 
* '''.qd format''' (stands for QuickDisk): Only ever used in official Nintendo re-releases. Almost identical to FDS, except QD is a full dump with checksum data. May omit padding.
  
The checksum data in question would be checked at BIOS startup to verify the integrity of the image and whether it was tampered with, in which case it will throw an anti-piracy error. [https://github.com/punesemu/puNES/releases/tag/v0.111 puNES added QD support in v0.111.] As of now, no other NES emulators support the alternate, more complete dumps and fudging that check's result to always return a negative. To emulate a .qd image with those, stripping the checksum data with a custom script is needed.
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The checksum data in question would be checked at BIOS startup to verify the integrity of the image and whether it was tampered with, in which case it will throw an anti-piracy error. As of now, no NES emulators support the alternate, more complete dumps and fudging that check's result to always return a negative. To emulate a .qd image, stripping the checksum data with a custom script is needed.
  
 
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===Overscan===

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