HensTooth Discs (tm) Reproductions are made differently from other manufacturers.
first step in copying an old disc is to make very high-resolution scans of sections
of the disc using a special computer program we created for this purpose. This
step is similar to methods used by others to make reproductions.
Once we have good images, we use another specially-created program to convert
the pattern of holes on the disc into music in standard musical notation format.
THIS IS THE FIRST STEP IN A PROCESS WHICH DISTINGUISHES OUR REPRODUCTIONS FROM
THOSE OF ALL OTHERS.
we have the music in standard form, we can then ( using the experience gained
over the years from looking at the music on many discs ) correct all the small
positional errors in note locations. These errors can come from two sources. The
first is inaccuracies inherent in the scanning process. This is less controversial
than the second source of errors, which is the actual inaccuracies that may have
occured in the original punching of the disc.
you need to be convinced that there were, indeed, significant inaccuracies in
the punching of old discs, please take a look at the high-resolutions scans HERE.
final result is that our "copies" of original discs very accurately
reproduce the music as it was originally intended.