The tool scans a .d64 image for a single-file program. This is usually a PRG file. It extracts this binary and removes the standard disk header (the load address, etc.).
The EasyFlash cartridge lives in memory at $8000 to $9FFF (the game cartridge area). The original game, however, expects to find its data on disk. Disk2easyflash injects a custom fast loader routine. This routine tricks the game into thinking it is reading from a disk, but it is actually reading from the cartridge’s internal flash memory at RAM speeds. This is the "magic" that makes floppy games run on cartridges.
You do not actually have to run the command line. The C64 community has already done the heavy lifting for you.
The OneLoad64 Collection is a curated set of over 1,700 Commodore 64 games, all converted to EasyFlash CRT format using—you guessed it—disk2easyflash and similar tools. If you want a "download, copy to SD card, and play" experience, skip the conversion and download the OneLoad64 gamebase. disk2easyflash
However, for obscure homebrew titles or rare European budget games, disk2easyflash remains the only solution.
Open your terminal/command prompt. Navigate to your folder containing the .d64 and disk2easyflash.py.
The basic syntax is:
python disk2easyflash.py game.d64 game.crt
However, for best results, you need flags. Many games require basic disk swaps. If your game has multiple files (e.g., "PROGRAM", "LEVELS", "DATA"), use the -c flag:
python disk2easyflash.py -c "PROGRAM,LEVELS,DATA" game.d64 game.crt
If the game has a custom loader (like Ocean Loader 4 or Rob Hubbard music routines), use the -f (force) flag:
python disk2easyflash.py -f -s 5 game.d64 game.crt
(The -s 5 adjusts the loading speed sensitivity for stubborn titles.) The tool scans a
I’m using an EasyFlash 3 cartridge. Here is how I converted The Last V8 from a grindy disk experience to an instant-start cartridge.
The moment of truth: I dragged the resulting .CRT file onto my EasyFlash 3’s SD card, popped it into the C64, and reset.
Instant. No "SEARCHING FOR $." No 20-second pause. The title screen was there before the monitor finished warming up. However, for best results, you need flags