This patch does what it says and does it well

Unfortunately, it also espouses one of the largest flaws with the xdelta format: forced CRC checking (which can be disabled by the patch maker but not the end user) Not normally a problem if the patch was made with a good dump of the ROM, but as you can read on the page it was made using a specific bad dump

What’s the problem with using a bad dump? Aside from that the mere phrase “bad dump” should alarm you by default, let’s pretend for a moment that you ripped your own copy with your own equipment–you will never get the same CRC whether you do a good or bad dump Which leaves us with hunting it down on the net, a growing impossibility as romsites are more interested in hosting good dumps unless they’re geared toward hosting goodsets

So I kind of have to give it a strike due to inability to apply the patch to a good dump of the ROM