Editing Talk:Namco System 357

== BD Emulator usage in arcade (speculation, discussion, notes) ==
There are several details that points to [[BDemu_Drive_Format | BD emulator]] functions in arcade machines:

* Arcades doesnt have a BD drive, but the game column in XMB in arcades has an "item" to mount discs, this is not a mistake and they did not foget to remove it, is there on purpose
** The .xml [[XMB#XMB_Configuration_Files | XMB configuration file]] for game column used by arcades is [[XMB-Game#update_files.2Fdev_flash.2Fvsh.2Fresource.2Fexplore.2Fxmb.2Fcategory_game_tool2.xml | category_game_tool2.xml]] and the items displayed are under the tag '''View id="root_arcade"''' the item that mounts the disc is '''key="seg_device"''' by using '''CB_MEDIA_FORMAT_PS3GAME_BD'''

* The path used by firmware updates, the path used by game updates, and the subfolder names used by them matches with a disc structure... but this "disc image" is stored in HDD
**Firmware updates in '''/dev_hdd0/game/SCEEXE000/ARCDIR/PS3UPDAT.PUP''' and game updates in '''/dev_hdd0/game/SCEEXE000/ARCDIR/INSDIR/DATA000.PKG''', the root of the disc is the folder '''SCEEXE000''' (possibly containing a [[PS3_DISC.SFB]], the folder ARCDIR is "replacing" the standard folder name "PS3_GAME" used in discs. ARCDIR can contain the main [[PARAM.SFO]] and several subfolders with more PARAM.SFO's (LICDIR, USRDIR, INSDIR etc...). All this keeps the standards of documented [[PARAM.SFO#CATEGORY | disc structures]], but there can be some parameters inside the .SFB or any of the .SFO's specific for "arcade game disc images"
** In difference with disc structures... the PS3UPDAT.PUP file is not inside a '''PS3_UPDATE''' folder, this "breaks" the standards for discs

* Autoboot of games (when PS3 is turned on) in arcade is simply the same XMB setting in retail ps3's used for "disc autoboot"
**In [[XRegistry.sys]] the entry: '''/setting/system/powerOnDiscBoot''', the only difference is in arcade the disc is an image mounted automatically by BD emulator