---
name: "md3serial"
section: "1"
platform: "linux"
package: "libdsk-utils"
version: "1.5.9+dfsg-1+b2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/md3serial"
---

# md3serial(1)

view or change serial number on MicroDesign discs.

## NAME

md3serial - view or change serial number on MicroDesign discs.

## SYNOPSIS

**md3serial** \[*-serial SERIAL*\] \[*-format FORMAT*\] \[*-type TYPE*\] \[*-side SIDE*\] \[*-comp COMP*\] *DISKIMAGE*

## DESCRIPTION

Md3serial allows the serial number on program discs distributed by Creative Technology (or image files made from such discs) to be viewed or changed.

## OPTIONS

- **-serial SERIAL**

  Write a new serial number to the disc (up to 7 characters). If this is not present the existing serial number remains unchanged.

- **-type TYPE**

  Determines which driver is to be used.

  - **auto**

    Select according to the disc image file. This is the default.

  - **dsk**

    Use the DSK (CPCEmu format) image driver.

  - **edsk**

    Use the extended version of the DSK format.

  - **floppy**

    Use the floppy driver.

  - **myz80**

    Use the hard disk (MYZ80 format) image driver. (This format cannot be autodetected.)

  - **cfi**

    Use the CFI (DOS fdcopy format) image driver. (This format cannot be autodetected.)

  - **raw**

    Use the raw driver.

- **-comp COMP**

  Select the compression method used on the source disc image file (has no effect when reading a floppy disc).

  - **auto**

    Detect from the first few bytes of the file. This is the default.

  - **sq**

    Huffman coded (SQ / USQ).

  - **gz**

    Gzipped (gzip / gunzip).

  - **bz2**

    Burrows-Wheeler compressed (bzip2 / bunzip2).

- **-side SIDE**

  Determines which side (0 or 1) of the disc (image) is to be identified.

## LEGAL NOTES

The authors of MicroDesign have placed it in the public domain and explicitly given permission for the copy-protection system to be reverse- engineered.

## AUTHOR

John Elliott \<seasip.webmaster@gmail.com\>.