Is the one disc Blu-ray version of Das Boot any different than first disc of two disc version? (1 Viewer)

[Orlando]

I was looking to pick up the one disc version, but was wondering if one copy of the movie was better quality wise better than the other?

 

[svenge]

It's identical to the 1st disc of the 2-disc release.

 

[Orlando]

Thanks that is what I thought. Just couldn't find that information anywhere.
Happy 4th!