Jump to content

Genesis ROM editing


Baron von Lector

Recommended Posts

Is there a go-to Hex-editor for editing of Genesis ROMs?  I ask for a reason.

 

I usually use HxD for NES and SNES editing.  For some reason, this hex editor is finicky with some Genesis games.  I've downloaded various seasons of Madden for the Genesis (95, 96, 98).  I can easily find names, such as Kordell Stewart and Neil O'Donnell and change them to something else, like Roethlisberger. 

 

When I load the ROM, I get a "Warning: Checksum Error" on all of the ROMs.  None of the ROMs load after making the change, except for 1998 one.  Black screen for 1995 and 1996. 

 

Is there something special that must be done for the ROMs to save correctly?  I noticed this a year or so ago, too, when trying to manipulate old FIFA ROMs for the Genesis, as well.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...