Disk Jockey for Windows
Creating your First Image
You can very simply create an image by first telling Disk Jockey it the size of the disk image you want and what you’re going to use the disk image with. Once you click the “Create the Image” button, you should have a fresh new disk image (with a proper name) in your Desktop folder. The machine or emulator you’ll be using it with will prompt you to format it.

If you’re a stickler for authenticity, Disk Jockey has you covered as well: it knows of most Macs equipped with SCSI, and the capacity of their hard drives. Tell it what Mac you have (or want to emulate) and it’ll tell you the period-accurate sizes that you should use:

Note that this does not mean that your disk image will only work on the Mac you specified. The Classic Configuration feature is simply a fun (and historically accurate!) way to specify a size.
Because not everybody likes to see files created on the Desktop, you may click the little purple folder icon to have Disk Jockey save its image to another folder.
Disk Jockey and SCSI drives
If you tell it you’ll be using the disk image in BlueSCSI or PiSCSI / RaSCSI, Disk Jockey will automatically partition your disk image (creating one volume using all the available space) and install a SCSI driver for you, so it’s ready to go:

For BlueSCSI, you can also tell Disk Jockey which SCSI ID you want your disk image to be assigned to, and it will name it properly.
Floppies! CD-ROMs! DVDs!
Disk Jockey can also create images of floppies, CD-ROMs and others. Tell it you want to use a classic configuration and look under “Other”.
Creating a Blank Image Full of Zeroes
If you just want a blank image with nothing in it, simply select one of the non-SCSI options under “Use with” (Basilisk II, FloppyEmu or Mini vMac). Disk Jockey will create an empty file of the size you requested.