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Open PS2 Loader 0.9.3 - Documentation Project / tree-structure

OPL overview

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OPL Configuration files :

OPL will store its settings into 2 different configuration files – conf_opl.cfg and conf_network.cfg – whereas OPL 0.9.2 used only one file (conf_opl.cfg). OPL main settings and display settings will be saved into conf_opl.cfg – while network config settings are saved into conf_network.cfg.

Another difference with 0.9.2 is that conf_opl.cfg doesn’t store GSM settings anymore – since GSM is now configurable per-game. These settings, along with compatibility modes, VMC data… are now saved into per-game specific files – named <game_IG>.cfg – and stored in the CFG folder of the device you launch your games from.

conf_opl.cfg and conf_network.cfg will be read / loaded / saved in this order (basically from the faster to the slowler device) :

MC0 >> MC1 >> HDD >> USB

If OPL fails to write or find its settings on MC, it looks on HDD for them and etc…

If you want to save OPL settings into another device that the MC, remove all MC from slots, disable all devices except the one you want to save onto and “save changes” (don’t forget to remove your settings from mc:/OPL folder if you had). At next launch, OPL will load your settings from the device you choose (and save here), even if you have a MC inserted in a slot.

For HDD, conf_opl.cfg and conf_network.cfg are stored in the root of the +OPL partition ; for USB, they are stored in the root of the USB device.

Note : OPL folder – along with opl.icn and icon.sys – will still be created on your mc, even if you choose to save your settings on another device.

Any other file – which all are game related : ARTs, cheats, VMC... – can not be stored on the MC – but only on the device you launch your games from.

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Directory structure :

OPL uses the same directory tree structure across HDD, SMB, and USB modes. These folders will be automatically created when you launch OPL for the first time and select and choose your main device (choose a “start mode” in Settings screen). For HDD users, a 128Mb +OPL partition will be created (of course, the CD and DVD folders will not be created).

Directory tree structure :

Folder name Usage Example
CD For storing games on CD media ( < 700Mb) – i.e. blue-bottom discs – named as My game.iso (you no longer need to use the Game ID in the iso name). (my example isn’t an CD game :P )
DVD For storing DVD5 and DVD9 game images – named as My game.iso (you no longer need to use the Game ID in the iso name). These images, when over 4GB, must be sliced into several parts if you use OPL in USB mode (due to FAT32 limitation). Okami.iso
VMC For storing Virtual Memory Card images – usually named as <game_ID>_0/1.bin>. SLES_544.39_0.bin
CFG For storing per-game configuation files – named as <game_ID.cfg>. SLES_544.39.cfg
CFG-DEV For storing per-game configuation files – named as <game_ID.cfg> – when saved from a OPL beta version. SLES_544.39.cfg
ART For storing ART files (coverboxes, backgrounds and icons disc images… – named as <game_ID.COV.jpg> (cover art). SLES_544.39.COV.jpg
THM For storing custom themes – named as <thm_name_of_the_theme>. thm_Universe_9
CHT For storing cheats files – named as <game_ID.cht>. SLES_544.39.cht

Note : the same suffix is used on all devices. Ex : cheat files are always saved as <game_ID.cht>, no matter where they are stored in.

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