The problem is the only defined devices are
CODE
usb:....\Device\Mass0...dvd:....\Device\Cdrom0
so setting another one will fail, there is still a way though, you can set game:\ in the .ini file
this way : rompath = game:\Emus\Mame\roms
game:\ being the folder which contains mame's xex.
Then it will work.
patching with an hex editor the device map string changing it to the following
CODE
hdd:....\Device\Harddisk0\Partition1
might have worked but the path lenght is too big for it to respect the original one.
P.S. To those who could not figure it out, the in rom menu is accessed by using left trigger + a
This post has been edited by mathieulh: Jan 8 2010, 08:22 PM