# Zork Zero, MS-DOS retail release (1989) - floppy image checksums
#
# Imaged 2026-09-12 from the 3.5" diskettes of an original dual-media retail
# box (two 720K 3.5" diskettes plus three 5.25" diskettes) via a USB 3.5"
# floppy drive. macOS does not grant the console user the USB floppy's device
# node (unlike optical drives), so the capture goes through hdiutil:
#
#   hdiutil create -srcdevice /dev/diskN -format UDRO disk.dmg
#   hdiutil convert disk.dmg -format UDTO -o disk   # then rename .cdr to .img
#
# The .img files are raw 720K sector images (1440 x 512).
#
# No Redump entries exist for Infocom floppies; these hashes stand as the
# reference for this pressing.

# 3.5" disk 1 (volume "ZORK0 1") - 737,280 bytes
crc32  16f6535a                                  zork0-dos35-disk1.img
md5    67abe77362704f759a0e32c7d74d9996          zork0-dos35-disk1.img
sha1   cca4a87e28cd6902d8addd454b5b6093d43ec1fd  zork0-dos35-disk1.img

# 3.5" disk 2 (volume "ZORK0 2") - 737,280 bytes
crc32  9481f0f5                                  zork0-dos35-disk2.img
md5    424322cf9da706746c2d81a2982bbca6          zork0-dos35-disk2.img
sha1   629e7946cbcf8ff26e132cceabd3520aed9e1b4e  zork0-dos35-disk2.img

# The 5.25" diskettes, imaged 2026-09-13 with a Greaseweazle V4.1 as 360K
# double-sided (40 cylinders x 2 heads x 9 sectors), decoded with
# "gw convert --format=ibm.360" from flux / read with the same format.
# Raw flux (.scp) is retained for disk 1; disks 2-3 were decoded at read time.

# 5.25" disk 1 (volume "ZORK0 1") - 368,640 bytes
crc32  11cd7452                                  zork0-dos525-disk1.img
md5    3828cc78c798e66a1e2777f6046360c1          zork0-dos525-disk1.img
sha1   ddb25aaa942df182a07f3b76b496feab82f9e335  zork0-dos525-disk1.img

# 5.25" disk 2 (volume "ZORK0 2") - 368,640 bytes
crc32  9cfc119b                                  zork0-dos525-disk2.img
md5    c8f55d51b0f5962d486c1668b44a14b8          zork0-dos525-disk2.img
sha1   05e4c43ea0177727ae1d66316657eda3da80bdcb  zork0-dos525-disk2.img

# 5.25" disk 3 (volume "ZORK0 3") - 368,640 bytes
crc32  d86be876                                  zork0-dos525-disk3.img
md5    b91d1a599b9a23535561e9647795c99b          zork0-dos525-disk3.img
sha1   f5df4705338fcbd2a61fe947a81473cccc90ea79  zork0-dos525-disk3.img