Disk Jockey

Image Creator

Creating your First Image

The image creator appears when you start the application.

If you’re in a hurry, tell it the size of the disk image you want, tell it what you’re going to use the disk image with, and click the button. An instant later, you should have a fresh new disk image (with a proper name) in your Downloads directory. The machine or emulator you’ll be using it with will prompt you to format it.

A screenshot of Disk Jockey in simple mode

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:

A screenshot of Disk Jockey in classic config mode

Disk Jockey and SCSI drives

If you tell it you’ll be using the disk image in BlueSCSI or 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:

A screenshot of Disk Jockey with SCSI config

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.

Advanced Options

Choosing to create a SCSI drive makes the “Advanced Options” button appear. When you click on it, an additional set of settings appears:

Currently, the “SCSI Driver” option is unavailable. But soon.

By clicking on the “+” sign at the bottom of the volume list, you can add new volumes to your device image, in addition to the one that Disk Jockey creates for you. You have several options to choose from:

“Blank HFS” is an additional HFS volume. You will be prompted for a size. The first time this volume will be used in a Mac, you will be prompter to initialize it.
“Blank ProDOS” is an additional ProDOS volume. You will be prompted for a size but note that, due to the way ProDOS was designed, you will not be able to create a partition larger than 32 MB (33,553,920 bytes to be precise).
“Existing Image File…” will prompt you for an image file (either a volume image or a device image, in HFS or ProDOS format). This image will be scanned and all the volumes found inside will be added as volumes in your device image (you will be able to selectively remove the ones you don’t want).
Do you have a favorite floppy that you want to include? Do you want to insert Total Replay in a SCSI drive? This is the option for you.
“System 6.0.8 (Bootable)” will add a volume that already contains a full installation of System 6.0.8. If you want to be able to quickly start an old Mac, just add this, force the Mac to start with this device image and off you go.
“System 7.1 (Bootable)” is the same as above, but with System 7.1.

Note: A traditional partition creator built inside a tool like HD SC Setup 7.3.5 carves an existing hard drive into several volumes. Once all the hard drive’s capacity is allocated to volumes, you’re done.
Because they’re free from the physical constraints of hardware, the device images created by Disk Jockey increase their size according to your needs :) .

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.