Before I get into this post, I will say that I have read up on as much information on Xdelta Ui, I have patched games in the past with out getting this error. With out further a do, I am trying to patch tales of innocence like most ppl who have been waiting for this to come out. However, every time I do I get either this annoying error message: XDeltas: source file too short: XD3_Invalid_Input or this one: Xdelta3: target window checksum mismatch: XD3_Invalid_Input what the heck dose that mean, it makes a 120MB NDS file after I hit ok....I tried playing the file it lets me up to the point where Luca tell the Arca guards to let her go. Once the battle start Black screen and nothing, I hear the music though. Any ideas on what, why or how I'm doing this wrong, and how to fix it? Is 120MB correct? any help would be great! Also I am using Windows 7 32bit and my UAC is off...just to let you all know for those who help! I have tried changing the extentions to Xdelta instead of .dat, I tried renaming the NDS rom to toi like the translation patch is, no go!