Use Xbox Image Browser on PC to extract ISOs, then transfer via USB or FTP to the Hdd1:\Games folder. DLC: Place DLC files in Hdd1:\Content\0000000000000000\ . 4. Networking (LiNK & Title Updates)
RGH/JTAG consoles typically use extracted game folders (not ISOs).
(like Freestyle Dash or Aurora) installed, or are you starting from scratch? Jtag/RGH Tutorials #4 Downloading & Installing Games