MAMEWorld Forums - Hardware - Re: Should I ask this here or elsewhere - Question about region changing an arcade PCB (Wrestlefest)

> I've never done this, so bear that in mind, but in theory it's only IC19,18 and 33
> that are different between the versions, which represent the interleaved bytes of 68k
> code and the FG0 layer data. For MAME testing, the logical thing is to assemble the
> ZIP file of ROMs as if it were a real set, complete with valid name, and then run
> MAME with it, and the 'debug' parameter - that should disable the ROM validity check.
> Given how heavily Wrestlefest was bootlegged where I live, I can't imagine there's
> much significant protection, but again, as someone who's never tried it, I wouldn't
> know.
>
> If you do buy a board, though, and can dump as well as program new ROMs, I would be
> tempted to dump the ICs I mention above and check them against MAME and romident
> simply in case it happens to be an alternate revision.

Thanks for your thoughts! I saw the same thing in the source with the two 256kb program rom chips and the 128kb graphic overlay chips (where the Japanese text is likely stored). I'll give MAME a try with the debug menu!