DjayBee Posted October 14, 2022 Share Posted October 14, 2022 (edited) 42 minutes ago, Great Hierophant said: A friend of mine noted that both Choplifter! (1982)(Broderbund Software)(US)[a][!].atx and Choplifter! (1982)(Broderbund Software)(US)[a2][!].atx in the a8preservation archive replace the copy-protection check at $067D with a JMP past it. In other words, these are cracked disks. These dumps are from original disks and they are not cracked at all. They still have their duplicate sector protection. They only skip a bad sector check for unknown reasons. Look here and open the entries of the [a]- and [a2]-release. You will find documentation on the protections. ... and I found an error in it. The EOR for [a2] certainly does not use the bad sector's status code but an #$90. Information about the dumps can be found in our database: [a]-release with a photo of the disk [a2]-release unfortunately without further information Edited October 14, 2022 by DjayBee 1 Quote Link to comment Share on other sites More sharing options...
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