NO EDIT:
I did find the original post for the add-on, however, like you said, the link is gone.
But, nothing in the topic infers that the add-on was failed.
I was able to get around the whole "CRC" thing.
I tested the add-on, and it works fine, but it is a really bad add-on.
So my only guess is that it was failed because it's really bad.