On Thursday 22 May 2014, Spiro Trikaliotis wrote: > Hello, > > * On Thu, May 22, 2014 at 05:26:22PM +0200 Groepaz wrote: > > all disks are protected, and you will need the g64 images to make them > > work in modern emulators. there even exist a couple of cracks from a > > couple different sceners (i am also interested in those, btw... :)) > > I only ever had the 8/87 issue of it. It was extremely easy to remove > the protection: You had to change two (or was it three?) bytes on > track 18, and the protection check was gone. > > In fact, it was my first try in removing a copy protection, and it did > not take too long. > > I do not know about the other issues, but I do not expect it to be much > more difficult there (at least, not for everything before 8/87). yeah i know that "hack"... it doesnt work on all issues though, the protection changed (at least) 3 times. thats something i want to look at closer when i have proper dumps of all issues :) derived from Issue 8/87 (second disk loader): - Block 18/18 (offset 0x17700) Bytes $83 ff: $F8/$BB/$12 instead of $CF/$C2/$AE disables the copy protection. (iirc correctly this is related to decoding of illegal gcr values) -- http://www.hitmen-console.org http://magicdisk.untergrund.net http://www.pokefinder.org http://ftp.pokefinder.org Bad officials are the ones elected by good citizens who do not vote. <George Jean Nathan> Message was sent through the cbm-hackers mailing listReceived on 2014-05-22 19:00:03
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