If you want to create a ZIP backup of your own progress to keep safe or revert to later (preventing the dreaded corrupted save error):

  • Select Elden Ring: Find the CUSA18581 folder/icon.
  • Copy: Confirm the copy.
  • Create the ZIP: On your PC, the PS4 creates a specific folder structure on the USB (PS4/SAVEDATA/ACCOUNT_ID/...). You can ZIP this entire folder structure for safe keeping.
  • If the "full" save was created with a modded PS4 (jailbreak), it may contain homebrew signatures. Your stock PS4 will freeze, crash, or potentially require a factory reset to clear the corrupted data notification.

    That means the file is not re-signed to your PSN. Use Save Wizard or Apollo Save Tool.

  • The ZIP format is used to compress the savegame.sl2 or savegame.bin file (and accompanying metadata) for easier download and extraction.

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