I think I asked years ago about duplicating these,
but is there a practical way to do that with just a 1541?
I doubt it.
Most 'digitial alignemnt disks' -- the ones that don't need a 'scope --
have sectors delibrately recorded to oenar or too far from the spindle --
that is 'misaligned'. By seeing which ones are readable, the software can
determine if the heads re too near or too far from the spindle (if more
secectors too far fro mteh spindel are readable than ones too near the
spindle, the headad are also too far from the spindle).
Needl;ess to say you can't copy such a disk with a stnadard drivem no
matter how well aligned it is.
-tony