Since PatchList Manager only gets the names of the current patches in the D-50 and no other system exclusive data, Send Patch Dump is not supported.
When you get a patch dump from the D-50 and there is no RAM or ROM card in the D-50's card slot, the 'Card Patches' patch list contains the name of the last patch in the 'Internal Patches' patch list at every patch location. This is because the D-50 responds this way to sysex requests for Card patches when no card is installed. Please ignore this patch list if there is no RAM or ROM card in the D-50's card slot.