Here recently I've been getting "video file appears to have an invalid checksum! It is most likely bad!" on my rips of originals on Xdvdmulleter 9.7. I ripped virtua tennis 3 yesterday, but was able to use the autofix to remedy it, since I got that, I've been going back through some of my other originals and it does the same thing with them too, but the autofix gives me "Couldn't get requested file". The one I've been working with today is Guitar Hero II using an SH-D162C with Kreon version 0.81. The SH-D162C is in an external USB enclosure and I've used XBCr and Schtrom's to rip the game multiple times with the same results. The same image passes XBCr's stealth check and it also passes Schtroms acidflash image stealth check as well. At this point, I'm sure it's not the ripping software, could be the reader not working properly? I did notice that my PC had installed some windows updates sometime this morning though, could that have caused a problem maybe? PC at work shows the same symptoms.