este es un manualillo que pille hace tiempo en ps2scene para pasar por ftp las pelis a una particion creada con el dms hd format tool:
To put video on the hard drive, first you need to create a partition called "AVI". I use the DMS tool, they may be others that I don't know about.
Next you need to run ExecFTPs server on your PS2, then connect to it through your favorite FTP client (I highly recommend FlashFXP). Make sure PASSIVE mode is OFF when connecting to your PS2.
From within FlashFXP, you need to make two commands, one for mounting the AVI partition and one to unmount it.
commands are as follows:
Mounting
SITE MNT /pfs/0/ hdd:+AVI
Unmounting
SITE UMNT /pfs/0/ hdd:+AVI
First mount it, then navigate to /pfs/0 and that is where you upload your video.
when done, run the unmount command and disconnect.
I think the unmount is necessary, but not 100% sure.
DMS Format Tool
ExecFTPs .69
Obviously you need methods of executing these ELFs. I run them from Keylauncher .4