Another thought came to my mind.
The MTH website has previous PS2 and PS3 files available so anyone can download and install them into their engine. Assuming Atlas starts making their own PS3 files under the license, will these new files be available for all?
My reasoning is as follows: What if someone needs to replace a board in a "new" Atlas PS3 engine (and thus needs a sound file) or someone wants new sounds in one of their diesels?
I know I am thinking very far in advance but someone has to ask these questions.
Well once the engine reaches the consumers hands, the sound file can be downloaded to a computer and distributed by way of the internet even if Atlas doesn't make their files public. This is assuming that Atlas doesn't have a modified PS3 board/firmware that does not allow the sound file to be downloaded with the normal Consumer software package from MTH.