Since this is a category of files rather than a single product, here is a "review" of what this package typically offers and what you need to know before using it.
NTSC (North America/Japan). While Jtag/RGH consoles are region-free, matching the DLC region to your base game (Title ID) is often necessary for compatibility. (NTSC – Jtag/RGH) (Game DLC)
No need to be signed into Xbox Live (which you shouldn't do on a modded console anyway). Cons: Since this is a category of files rather
Jtag/RGH consoles are the only way to reliably preserve and play DLC for games that have been delisted from the official Xbox Live Marketplace. (NTSC – Jtag/RGH) (Game DLC)