At the XMB:
Open PS2 Loader splash screen:
In the game:
A few limitations apply:
Currently the space for PS2 software on all DESR units caps at 40GB but SP193 believes it can be resized. I suspect, to a maximum of 120GB.
Boot HD Loader partitions from partition information region (PATINFO) cannot be used because the cross media bar software requires that a partition has a valid PSF filesystem in it for it's resource files display. PSBBN does not require that and will show generic icons instead if it cannot read the PSF filesystem within a partition.
The PSX cannot use ATAD with 48bit support while running PS2 software so a limit of 120GB is imposed.
Also, regular homebrew using 48 bit ATAD drivers will not work properly with it's harddrive due to how the DVRP interface handles HDD access.
Even with these problems, this is a win !
Usually these units sell for bananas at Yahoo auctions Japan as "junk" and most of them are still good enough to be usable for playing games with Open PS2 Loader.
Edit: It's likely a new HD LOADER IMAGE format will need to be developed or we will not use a name convention on it that causes them to not show up on the OSD, something like this:
PP.HDL.GAME > HDL.GAME