Modified consoles allow you to run the game natively from an internal or external hard drive, which eliminates disc-swapping and wear on the DVD drive.
The JTAG exploit offers faster, more deterministic boot times compared to RGH, though RGH is more common for newer Xbox 360 models. Batman Arkham Asylum GOTYE [Jtag/RGH]
While the original Xbox 360 discs are not natively backwards compatible with Xbox One/Series X (requiring the "Return to Arkham" remaster instead), JTAG/RGH consoles bypass these restrictions entirely to play the original code. GOTY Edition Features Modified consoles allow you to run the game