@Vitoarc:
Bah, not this again 
Seems like the dumper doesn't work correctly on your Mac. Second time I've seen this.
Can you run TattleTech and try to get the real ROM checksum? Thanks!
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Comments
2010, October 29 - 3:46am
#52
2010, October 30 - 12:50pm
#53
Nice project you have going here! I saw that you didn't have the PM5500 on your list. I have the ROM for it too.
I'll check my ROMs that I have personally collected over the years and cross check them with your list.
2010, October 31 - 3:22pm
#54
Can you upload the full Mac OS ROM (New World) set as the chart above (.sit file, not .zip)?
2010, October 31 - 10:49pm
#55
@sheepmyshaver123: Right now we're focusing on "regular" ROMs ... as for New World ROMs, we'll get to that eventually. Please be patient.
2010, October 31 - 11:15pm
#56
CyberMonkey, when you're cross-checking your ROMs against the list make sure to check the checksums. I spent ages trying to dump the ROM in my 5400 until I discovered that a) it wasn't going to happen and b) the 6400 ROM has the same checksum so mine would have been a dupe anyway.
2010, October 31 - 11:28pm
#57
And use TattleTech to determine the checksum.
2010, November 1 - 7:27am
#58
@Balrog: before cluttering up your mail, do I read the chart correct when I´m saying you´re missing the 'Kanga' ROM?
Got one sitting here but seems you´ve got your share of dups… 
2010, November 1 - 2:06pm
#59
@SwedeBear:
It's simple: if it's not in that list (or marked as missing), I don't have it. Please go by checksum -- to find the checksum of a dumped Mac ROM, look at the first few hex bytes.
It does seem we are missing it though.
2010, November 4 - 6:17pm
#60
I have a genuine Performa 550. Unfortunately, it's missing a monitor.....and a power supply...and a keyboard...and a mouse...and a case.
2010, November 5 - 10:11am
#61
I've got a PowerMac 8200 lying somewhere, but it is not listed in the chart. Can it's ROM be of any interest ?
2011, March 6 - 5:26pm
#62
Would a rom file of an Imac G3 be OK? I have one from a previous version Mac os 8.5. Also It is not listed from the chart!
2011, March 6 - 10:11pm
#63
The iMac G3 uses a New World ROM, so what I'd need is the Mac OS ROM file. Please verify its MD5 checksum first; I have most of them.
2011, March 9 - 1:32am
#64
I know it does (It is PowerPc). It is a Mac os rom file. It said "MAC_OS_ROM". But I would need a way of getting the rom checker in to the Imac G3. Is there a way to transfer the software to the Imac G3? It does have usb.
2011, March 9 - 6:09pm
#65
The ROM dumper is not useful on Macs which use the Mac OS ROM file. Just give us the file itself. 
2011, March 10 - 1:52am
#66
Then how would I transfer the file from an old mac if the internet is slow? And what archive should I put it in?
2011, March 10 - 5:55am
#67
If you using OSX, use zip. If you using OS9, use stuffit.
2011, November 24 - 5:02am
#68
What is it?
2013, September 28 - 10:39pm
#69
The Chart at Google Docs says the incorrect "Note" for the Macinttosh Classic ROM - the "ROM Disk" isn't just the WHOLE last 256KB of the 512KB Macintosh Classic ROM, the first bit of the "ROM Disk" is at position 0x00000e10 (that was just a guess from where I found "LK", the boot block indicator. Although I'm not much active here now, I think the "ROM Disk" might actually be at position 0x00020F86) in the ROM, and the data in the "ROM Disk" is 357KB (but I don't know where exactly the last bit of the "ROM Disk" is in the Macintosh Classic ROM).
2013, July 28 - 9:14pm
#70
I find this project interesting for different reasons, I often look into parts of the various ROMS to see how they do something, as well as to attempt to figure out why they are so big. I have discovered that there is a significant amount of code that has survived almost completely unchanged from the Macintosh Plus all of the way through the OLD World ROM PowerPC Macs, and even a little of the code from the original Macintosh 128k. I have also found that there is an inordinate amount of redundant routines, this being the likely source of the extreme size of the later ROMS, I would estimate that any 4MB ROM could be rewritten to reduce the amount of redundant code, and improve performance while fitting in 512KB maybe a bit less.
It also looks as if much of the ROM code is written in High level languages, a poor and unfortunate choice, as this often increases the size and reduces the performance compared to well structured, hand optimized assembly language. Not to mention that using Assembly language for most of it would have reduced the development cycle time and reduced the trouble in debugging, as well as the number and severity of bugs that make it into the final ROM.
I have always been interested in diving a little deeper into the workings of the system than most.
2013, September 16 - 7:11am
#71
Overwrote my OpenBIOS ROM with MintPPC Help!!!
now Im using Mac OS but it is painfull to hear that my CopyROM ROM doesn´t work
2013, September 17 - 5:37pm
#72
you can't overwrite rom, it's read only.
What did you do exactly?
2013, November 8 - 8:19am
#73
Is this project still up? I have a ROM that maaaay be the New World's Mac OS ROM 3.8, but I don't know its checksum. It won't match any of the others in the chart, though. Any help identifying this one is appreciated.
2013, November 8 - 8:21am
#74
Also, I have the "Mac OS ROM 1.2.1" from 22/01/1999. And its MD5 checksum: 483233f45e8ca33fd2fbe5201f06ac18.
Cheers!