Original Logic: Alex Kazik
Enhancements: Milasoft64
Original link: GitHub Repository
For setup on Windows, see Windows Instructions below.
Disk2EasyFlash is a utility designed to create Commodore 64 cartridge images for modern EasyFlash cartridge hardware. You can now create MULTIPLE disk images on a single CRT image.
Supports up to 26 disk images. Each disk is assigned a letter (A–Z) within the custom bootloader.
Automatically generates a boot menu on startup.
Press the key corresponding to the disk letter to mount and boot that image.
Displays actual disk names in a PETSCII-compatible interface.
- File Size Flexibility: Handles various
.d64variations, including 175,531-byte extended format - Multi-Format Support:
.d64(up to track 40),.d81,.m2i
Supports Normal (nm), Low (lo), and High (hi) memory mapping modes.
Requirement: Software must use standard ROM Kernal load routines.
Why: Hooks into Kernal vectors to redirect disk traffic to cartridge banks.
Incompatibility: Custom fast-loaders or direct 1541 hardware access may not work.
Limited by EasyFlash format (64 banks of 16KB, max 1MB). Large multi-disk sets may exceed capacity.
Run interactively (double-click) or via command line:
Modes (required):
--crt / -c– Standard EasyFlash cartridge--xbank / -x– EasyFlash XBANK cartridge--list– List disk contents--multi– Pack multiple disks (min 2)
Bank modes (optional):
--normal– Full 16 KiB banks (default)--low– Lower 8 KiB banks ($8000)--high– Upper 8 KiB banks ($A000, Ultimax)
Other options:
--nolisting / -n– No LOAD "$" listing--blocks-free N– Set blocks-free count (default: 2)--remove ID– Remove entry #ID (repeatable)--ignore ID– Keep entry but don’t flash (repeatable)--verbose / -v– Print listing even when building
NOTE: Output .crt is always last.
# Build a single-disk cartridge
python disk2easyflash.py --crt game.d64 game.crt
# Build from a .d81 image
python disk2easyflash.py --crt game.d81 game.crt
# Build using low bank mode
python disk2easyflash.py --xbank --low game.d64 game.crt
# List the contents of a disk image
python disk2easyflash.py --list game_disk.d64
# Build with specific files removed/ignored
python disk2easyflash.py --crt --remove 1 --ignore 3 game.d64 game.crt
# Pack multiple disks into one cartridge
python disk2easyflash.py --multi disk1.d64 disk2.d64 disk3.d64 output.crt
Run the runme.bat file from command prompt or use the CLI above.
Run the .exe file under Windows for the menu-driven CRT creator. It will read disk images from the SAME folder (and subfolders). The same commands above will also work.
Example: disk2easyflash.exe --crt pacman.d64 pacman.crt
Versions for Mac and Linux can be created using the Python script.