Kazoo Metroid SNROM dump

Anyone used kazoo to make a correct dump? If so what script and settings.

Ive been trying to use MMC1_SKROM with 1x, which gives the correct size 128 kb, but the closest ive gotten is a rom that starts but is garbled.

Do you have a correct header? Have you compared the data to other dumps?

yeah i compared it a valid rom, the header is pretty close:

4E 45 53 1A 08 00 12 00

the valid has a 0x10 instead 0x12. It doesnt make a difference in running

Im getting a match on the first 0x4000, so assume that mean the first bank was read back right.
But there are big portions that are not matching following that, but some of it does. I dont know if the script is reading the banks in the right order?

This sounds very familiar to the problem I am having with the Kazzo dumping a prototype with a MMC1B2 chip: viewtopic.php?f=9&t=7912&start=300#p150378

Just checked a copy of Metroid that I have and sure enough it has a "MMC1B2" chip in it too.

Looks like maybe the scripts don't support MMC1B2?

The only difference between the various MMC1xxx parts is the PRG-RAM behavior. Whatever's going wrong, it's not that

I just tried dumping my Metroid cart (MMC1B2 chip) with the Kazzo and the dump worked with no problems... ROM is playable and looks good.

So I'm not sure what is going on. But what Pickle described in this thread about the first 16K matching, then large sections matching and large sections not matching, and things appearing out of order is exactly what I am seeing with the Lolo 3 prototype.

lidnariq - Is what you and SargeSmash where discussing in this thread related to any of this? viewtopic.php?f=9&t=7912&start=285#p145212 SargeSmash was having problems dumping a Zelda cart with a MMC1B2 and it sounds like he made some changes to the script based off your recommendations and then he was able to get a dump?

SargeSmash was specifically looking to back up (and/or restore) the save game from his LoZ cart, which was what I was mentioning there.

But simple PRG and CHR banking are unaffected by any MMC1 revision...

brian thanks for the confirmation, im going to write this cart as being bad.