Disk2easyflash Jun 2026

The software writes its own custom LOAD routine into the cartridge's memory. When the EasyFlash is plugged into the C64, this routine effectively "redirects" the computer's attention away from the disk drive and toward the cartridge. When the program tries to load a file, the custom routine steps in, finds the file in the cartridge's pre-built table, and copies it instantly into the C64's main memory.

However, a challenge exists: most classic software resides on .d64 or .d81 disk images. While devices like the SD2IEC allow loading these images, they don't leverage the blazing-fast speed of the EasyFlash.

(The -s 5 adjusts the loading speed sensitivity for stubborn titles.) disk2easyflash

: Because many classic C64 games used aggressive fast-loaders or "cracked" versions with custom intros, the success rate for automated conversion is relatively low—roughly 4% for single-disk games and 2% for multi-disk sets .

To understand its brilliance, you need to understand the two extremes of C64 storage: The software writes its own custom LOAD routine

When you run the tool, it analyzes the contents of your disk image, cataloging every file it finds.

python disk2easyflash.py --xbank --low "Game.d64" "Game.crt" However, a challenge exists: most classic software resides

Allows compilation of multi-disk games into a single, instantly loading cartridge format.

Thousands of classic C64 games and demos were only ever released on floppy disk. They were never pressed onto a cartridge. Disk2easyflash bridges that gap. It analyzes disk images, rips out the core machine code, patches the loading routines, and repackages everything into an instant-loading .crt file.

The tool is also integrated into , a versatile software‑defined cartridge for the C64, C128, C16, and Plus/4. With Sidekick64, you can convert D64 files on‑the‑fly and run them directly.

Games that use custom fast loaders or direct hardware access to the 1541 disk drive (bypassing KERNAL) will likely not function correctly when converted by default.