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.
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).