Maybe I'm the only one, but when I tested
both of these files on a dummy, they corrupted no matter what. Yes I do own all the DLC, so that is not the case.
I also noticed that when I downloaded the files, that the dates were from early 2009; wtf.
When I tried just taking the whole save and putting it on my flash, then looking in Save Data folder on my PS3, it showed as corrupt data immediately (shows corrupted data, no real picture, no actual name, etc).
I could be wrong, but this seems like a trick that the OP used the correct .sfo and image, but maybe Dead Space 1, or regular files, named like Dead Space files? I don't ****ing know, just my two cents.