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Copy Protection Scheme Question



    Is it possible to read 16 sectors in track 0 before it is loaded into
memory for nibble analyzer?  If it is true, I would be able to convert from
4-4 encoding and 6-2 encoding into normal 256 bytes before I will
disassemble 256 bytes each sector.  Disassembler gives me some ideas how
copy protection scheme is built in its own routines.  It would be possible
to disable routines after they use to identify header address and data
address.
    I get the information from track 0 before I can be able to read track 1
through 22 by using nibble analyzer and do disassemble to see the assembly
code.  Capture assembly code and move into a file for startup.
    It looks like that all copy protection disks do not have DOS that does
not contain files inside.  It is an example of spiral disc.  Will nibble
analyzer show spiral information before I can capture 4-4 encoding and 6-2
encoding and then convert them into normal 256 bytes.  Is it the way how it
works?
    I have seen that some hackers use Apple II which do not have AutoStart
feature can be able to boot copy protection disk before assembly code is
loaded into memory.  They hit RESET.  RESET returns to BASIC or Assembly
prompt.  They copy assembly code from the memory to other memory location.
They boot DOS 3.3 and copy assembly code from memory into files.  Is it the
way how it works?
    Is there a special software that allows to capture nibble that probably
contains $55FF bytes into the file?  I am curious if you know where I can
obtain -- Capture Nibble.  Thanks...

Bryan Parkoff


-- 
Bryan Parkoff