It excels at "Method 2" burning, which is often required for self-booting discs.

So here’s to DiscJuggler: the bouncer at the club of Dreamcast piracy. Ugly. Demanding. Gloriously effective.

Hackers realized that if you structured a CDI (DiscJuggler Image) just right , the Dreamcast would think a burned CD-R was a legitimate MIL-CD. And because the console’s boot process was hilariously trusting, it would execute code directly from the burnt ring. No mod chip. No soldering. Just a CD burner, a spindle of cheap discs, and one piece of software.

You press Power.

Discjuggler became the standard for the Dreamcast piracy scene for several critical reasons. Firstly, it offered robust support for the specific "disc at once" (DAO) burning modes required to successfully write the specific data structures of Dreamcast backups. More importantly, the file format .cdi (Discjuggler Image) became the de facto standard for scene releases. Warez groups that ripped Dreamcast games—often stripping out non-essential video files or downsampling audio to fit the 700MB limit—packaged their releases almost exclusively as .cdi files.