Vol 2: Software Upgrades

DDR
Switching DDR mixes, from burning discs through installation.
Published

August 19, 2026

The cab came with DDRMAX 2 on it. Fine for a while, but I wanted DDR Extreme. That’s the mix I actually played in arcades.

I’d never swapped software on a System 573 before. Took some reading to figure out what I needed, where to get ISOs, and how the install works on the hardware. Also learned pretty quickly that nothing I owned could burn a CD anymore.

Burning the discs

No optical drive on any machine in the house. PCs just don’t ship with them now.

So I picked up a USB CD/DVD drive and a spindle of blank discs. DDR Extreme needs two for this install: an IN disc and a GM disc. I burned a third mix while the drive was out anyway.

Burning the DDR Extreme install ISO to a CD-R

Hand-labeled Extreme discs: IN, GM, and a Pro Clarity 2 extra

Installing Extreme

First time I opened the cabinet for this, I mostly just stared at wires. The 573, the optical drive, cables everywhere, and nothing labeled in a way that helps you.

The eject button didn’t work at first. Drive was sticky. Paper clip in the emergency eject hole sorted that out.

Got the tray open, dropped in the first Extreme disc.

Extreme Disc 1 sitting in the 573’s optical drive

Install process, once you know it:

  1. Turn the machine off.
  2. Flip dip switch 4 on (shoutout to reddit and the facebook groups for this one).
  3. Put in the install disc.
  4. Turn it back on.

Installer boots and writes to the 573’s flash. Takes a bit. When it’s done, power off, flip dip switch 4 back, reboot.

Extreme installer writing to flashrom on the CRT

Game loaded.

NoteExtreme installation and first boot

Attract mode came up, song select worked, pads still registered. Good enough for me.

Unlock codes

Install gets you the base game. Operator unlock codes get you the rest of the song list.

The codes for these mixes are still floating around online if you look. Found the one for Extreme, entered it on the SECRET / INPUT PASSWORD screen, and that opened everything up.

Entering the operator unlock password on Extreme

Cartoon Heroes (Speedy Mix). AA.

AA on Cartoon Heroes (Speedy Mix) after the unlock

Superdisc

Didn’t love the idea of burning a fresh CD every time I wanted to try another mix.

That’s where the superdisc helps. One DVD with a bunch of compatible mixes on it. Boot into the installer, pick one, install. Same dip switch 4 routine.

Superdisc installer menu

Ran 5th Mix after that to confirm Extreme wasn’t a one-off. It wasn’t.

NoteDDR 5th Mix installed and running

Swapped to DDRMAX next since the superdisc makes that easy.

DDRMAX up and running after a superdisc install

This setup can run mixes 1 through 8. I don’t plan to burn individual discs for all of them. For now I’ve got Extreme, 5th, and MAX working, and DDR 3rd Mix Korea 2 is sitting on the superdisc if I ever get curious.