I suppose it would make it easier to obtain the opening_plugin.rco, gameboot.pmf and topmenu_plugin.rco. It may just work in firmware version 2.71 SE-B. Make it easier to insert a custom bootsound in the opening_plugin.rco file using MFaudio and PSPedit, along with editing the XMB menus in the topmenu_plugin.rco file as well.
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