CZ Pack 1 contains 20 separate sysex files, each containing a patch for your CZ. The patches work with the CZ-101, CZ-1000, CZ-3000, and CZ-5000. The sounds were all designed using CZ Touch (a precursor to Patch Base), but you don't need it to use these sounds! Any sysex transfer program will do.
The Sounds
Afterxylo: Xylophone sound with a sustained quiet pad in the background
Creature Bass: Bass sound with hollow attack phase.
Digital Noise Organ: Muted organ sound with a pleasant noise shower in the background
Drum Bass: A forward bass tone with a pitched drum hit at the beginning
Drunk Trumpet: A detuned brassy tone with a slow evolution
Fade Pad: A reverse-attack pad that glitters on sustained notes
Fairy Fly: A bright pad that appears, fades, and comes back fluttering
Flick: A flicking sound, ending in a quiet hiss. Quick hits are move like sea waves.
Hollow Crystal: A woozy pad with a crystalline attack
Intense Feeling: A muted, quivering, and growing sound. Good for long, dark chords
Laser Puddles: A laser attack sound with a puddle splash release. Hold notes for a creeping, muted tone...
Laser Sus Pad: A kissy laser attack on a bright lead/pad with a long release
Noisy Punch Bass: A resonant bass sound married to a digital noise chopper
Robo Growl: A singing, cartoon robot
Saxobass: A shaky bass sax tone with a gentle release
Snake Pad: A detuned pad with a angry snake
Stiff Bass: A rigid digital bass that wants to dance
Toad Bass: Like a Reese bass, but with a bullfrog mixed in?
Wist Pad: A long-release, detuned pad with an interesting attack
Yay Afterhit: A whistle-like tone with a tuned drum hit on release
Which synths do these patches work with?
Currently these patches will work with the CZ-101, CZ-1000, CZ-3000, and CZ-5000. I don't think they'll work with the CZ-1, but I'm working on that.
Do I need special software to use these?
All you need is a program that can transmit sysex files from your computer to your synth. If you have a Mac, then Sysex Librarian is an excellent (and free!) program to use for this purpose. On Windows, MIDI-OX is probably the most popular (and also free).