dlfrsilver wrote:The Doctor Doom's Revenge US version was a sealed copy i bought in USA, it was a leftover from a software shop. I have unwrapped/unsealed myself the game, and i never try to deprotect the game.
I just help checking those dumps and I don't know/care it is sealed or not.
In this case, I would say that software shop is problematical.
Ok, let me be more specific : the game disk is unmodified !
Here is the full explanation: Each time a professionally duplicated disk made by Trace Moutain Duplication machine is written, tampered, modified by a standard IBM PC, Atari ST, Amiga, Amstrad CPC drive, whatever, with the right tools, you can see that the disk has been tampered.
The signal written by a standard FDC differs from the one use to trace on the floppies with a professional duplication machine.
From this start point, if what you were saying was correct, i would then see that the disk is seen as modified or written on. But it's not the case.
I just made a dump with my kryoflux board, and i have been able to process the dump and generate an IPF out of the disk dump. The tool we use doesn't allow IPF generation when a disk is modified. It indicates by a message in red that some or all tracks are modified.
In the case of Dr Doom's Revenge, There is only one explanation. The protection has been patched before the disk was duplicated.
That's why the disk is not seen as tampered.
dlfrsilver wrote:Prehistorik 2 is perfectly working. Both original disks are OK. So i don't know why you've found these errors.
In your dumps, the 5 files are bad : GLACE.TRK, LEVEL4.SQZ, LEVEL5.SQZ, LEVEL8.SQZ, LEVELE.SQZ
You can use Hxc to extract and compare them with any working cracked version from abandonware sites.
After replace those files, your copy works fine for me, too.
Since you said it works perfectly (on a real machine ?). Can you redump this game again (in both index and splice mode) ?
Thank you very much.[/quote]
I will never compare any original game with a cracked copy. Just about the Prehistorik 2 case, The existing PC crack is faulty !
The crack you're talking about has palette problems (and whatnot), the protection has not been correctly removed.....
If you don't know it, now you know
I'm an SPS team member since quite a while, so i have sold my SCP board, life is made of choices
Now SPS France representative since the 19th of June 2014. Proud to be an SPS member !