This command-line program dumps a disc (CD, GD, DVD, HD-DVD, BD, GC/Wii, XBOX, XBOX 360) and disk (Floppy, MO, USB etc.)

CD and GD, it can dump considering a drive + CD (=combined) offset.
What is the drive offset? Please look this document

This program works on Windows PC (Windows XP or higher) and Unix based PC (Linux, macOS).

MPF can work this program with GUI.

github.com/saramibreak/DiscImageCreator