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Formatting Large SD Cards

General instructions are credit to this guide on Reddit. Normally, PSP consoles will not allow you to format SD cards that are bigger than 128 GB with the button built into the system settings. However, by using a zzBlank image and formatt…

2 min readUpdated Oct 9, 2026
Exclamation-triangle-fill.svgWhile this method should work and allow the SD card to be detected on the system, any data written past 128 GB WILL become corrupt!

General instructions are credit to this guide on Reddit.

Normally, PSP consoles will not allow you to format SD cards that are bigger than 128 GB with the button built into the system settings. However, by using a zzBlank image and formatting the card on a computer first, it is possible to make 200 GB or larger SD cards work in the console.

This tutorial can also be used for formatting 64 GB or 128 GB SD cards with a more optimal cluster size for faster file operations.

Requirements

Instructions

  1. Connect the desired microSD card to your Windows computer.
  2. Open windiskimager32. It should automatically detect your SD card.
  3. Select the zzBlank file and write it to the card. Once it has finished writing, close the program.
  4. Open Rufus. This is needed to format the SD card as FAT32 if you're on Windows.
    • On macOS and Linux, you do not need to download any additional software, as their disk utilities already allow you to format FAT32 volumes larger than 32 GB.
  5. Select the following options in Rufus. Cluster size is also relevant if you're formatting with macOS or Linux utilities.
    • Boot selection: Non bootable
    • File system: FAT32
    • Cluster Size: 64 kilobytes
    • You can optionally disable the option "Create extended label and icon files" if the default Rufus icon is undesirable.
  6. Click the Start button in order to format the card. Once finished, exit Rufus.
  7. Extract previously mentioned the PSP directories from a donor memory card onto the freshly formatted SD card.
  8. You can now safely eject the SD card and try using it on a PSP handheld. If everything was done right, the memory card should appear as normal.