Disk copy & mod utility that was regularly updated (to circumvent new copy protection schemes). Oldest seems to be from August 1989 (1988 according to Tagoo), while the newest seems to be from July 1993. The package included a printed sheet with supported software it could copy/cheat, this sheet included a date 'version' which is inconsistent with the version displayed by the software itself.
e.g the printed sheet may show versions (dates really) like 89/08/26, 91/01/01, 91/06/22, 92/02/22, 92/06/20, 92/12/19 or 93/07/24 while the software itself shows the system version like 2.20 or 2.32 (with just a (c) year that often contradicts the release year). More than one subversions with different copiable titles and startup graphics run on same system therefore share same version number.
The platforms were MSX1/2/2+ with the earliest known issue though MSX1 was dropped and turboR was added later. It is unknown exactly which issues run on MSX1 though Ver 2.12 and 2.20 ones do albeit skipping the splash screen.
Since it was highly unlikely any other software maker would show a prerelease prototype or such to this software's developer, the developer likely could access only the software available to the public, therefore a software being in the copy/mod list means it was available.
Copying from internal to external FDD may fail. If the original is 1DD the destination disk is formatted to 1DD accordingly. Copied disk usually becomes unprotected but some eg Pixel 3 remains protected.