A new boot screen editor tool has been jointly released by Guichi and Vector you can find the release below and usage instructions just to asure people no guichi is not back this release was made before he left and was kept internal until now.
to patch your games simply select your cdrwin style bin image then select the logo you wish to patch with. Select which encryption method to use and what video mode the logo is for, enter the ELF filename
[SLUS,SLES,SCUS ect]. You can find it by either looking at the cd on your pc or using isobuster, winiso or other iso file viewer. Finally hit the patch button.
to extract images just select the bin cd image, what video format its in and find the ELF name of the cd image.name the raw image to be extracted then hit the patch button.