Another hint: When FTPing to the PS2 make sure your FTP client is NOT in passive mode ! Weird things happen if the FTP client is on passive mode.
__common is the folder used by SCEI Browser 2.0 to store memory card saves. (The original HDD utility disc which comes with Sony's HDD install the browser 2.0 on the HDD, allowing the PS2 native access to the HDD partitions at the memory card browser)
SCPH-10000_GH-001 SCPH-15000_GH-003 SCPH-18000_GH-008 SCPH-30001_GH-005 SCPH-30000_GH-016(V4) SCPH-30001_GH-010(V4)
2xSCPH-10190, 2xSCPH-10350, 2xSCPH-10280
"**** j0 hackers!"
-Sjeep (As seen on TOXIC OS ELF...)