A: Yes. "Recovery" dumps often come from Xbox Live downloads (Content Packages). Those are not disc-based. Redump is the only source for disc-exclusive content (e.g., unpatched game code, pre-patch bugs, original audio).
: Ensuring the highest compatibility with emulators like Xenia. xbox 360 redump
The complete set (as of 2025) is approximately for all regions (USA, Europe, Japan, Asia). Most users do not need the full set. Instead, they look for specific game DAT files to verify their personal rips. A: Yes
The Xbox 360 is not a standard DVD or Blu-ray player. Microsoft developed a proprietary format called (Xbox Game Disc). There were two major versions: XGD2 (standard DVDs with a twist) and XGD3 (pushing the physical limits of dual-layer DVD). unpatched game code