Document ID: CAS-FZ1-1987-LIB
Subject: Media verification, format specification, and library compatibility
Issued: April 12, 2026
| Offset | Size | Content |
|--------|------|---------|
| 0x00 | 12 bytes | File identifier: CASIO_FZ1_SMP |
| 0x0C | 4 bytes | Sample length in samples (max 32,767) |
| 0x10 | 2 bytes | Loop start (sample count) |
| 0x12 | 2 bytes | Loop end (sample count) |
| 0x14 | 1 byte | Loop mode (0=off, 1=forward, 2=bidirectional) |
| 0x15 | 1 byte | Original pitch key (MIDI note 0–127) |
| 0x16 | 2 bytes | Tuning offset (cents, ±50) |
| 0x18 | 2 bytes | Start address (word offset, memory map) |
| 0x1A | 1 byte | Waveform guard (0=off, 1=on) |
| 0x1B–0x3F | 37 bytes | Reserved (zero-filled in factory samples) | casio fz1 sample library verified
Open the .FZF file in a hex editor (like HxD). Verified Header: The first four bytes should read
FZ followed by a specific hex code 1A.00 00 00 00 or MZ (DOS executable), the file is junk.The primary goal was to verify the integrity, format compliance, and playability of a third-party or archived sample library intended for the Casio FZ-1 (1987) digital synthesizer/sampler. Given the age of the format (proprietary, floppy-disk based), verification ensures the data has not corrupted and will load correctly on vintage hardware or emulation (e.g., FZ-1 Emulator, FZ-VST). the file is junk.