Hi everyone!
I have one way to move save file from USB to MC for PS2 Slim model 7x or 9x.
First you need uLaunchELF. One new CDRW, One USB <= 1Gb format = FAT.
Now,
Step 1: Open Save File by PS2 Save Builder
Step 2: Choose all file on left table, right mouse -> extract. (it appear name...