Info from guru

PlayStation 2 Memory Card File System

Memory Card

Image should be 8 650 752 bytes. NAND flash chips seen:

• Samsung K9F6408UOC

Dumping the memory card

Desoldering method

Wellon VP-490 programmer with Adapter WL-PSOP44-U001 is confirmed to make correct dumps.

To be verified

• only boot.bin is affected by magic gate on system246, it loads another file within the FS which is a lamely xored ELF file, and that one is the game boot

Magic Gate on 246:

• prevent that people can read the contents of the card, be it using a PC or other computer or a retail PS2.
• In case the card can still be read, prevent that the encrypted file works on other dongle cards
• protect the contents of the file against analysis and tampering