Vandal, if the disc you have has a name starting with MTHR, and the audio is a bit low, then it was done by me a few years ago. (NFO here.)
Now, in accordance with our forum rules this cannot be classed as a preservation, as the movie has had an official DVD release. It also cannot be called a fan edit, as all I did was convert the picture into anamorphic and run it through a grain filter. Therefore, please do not publically discuss the distribution of this disc here.