The SDR2 English voicelines are lost?

May I ask what is being looked for in specific? The voice files themselves are of course easy enough to locate through the games. Do you mean videos like these with all of the lines in one place?

www.youtube.com/watch?v=nJsFsSxnYlM&pp=ygUYc2RyMiBlbmdsaXNoIHZvaWNlIGxpbmVz

Oh, I see.. yes, that is a shame. I was quickly browsing YouTube and found an old playlist of DR voice files, and it's appearing that they are all privated rather than deleted entirely.

I did find English videos remaining for Kyoko and Makoto aside from the Junko one I linked. The files themselves can also be found on video game sound resource sites such as this. www.sounds-resource.com/pc_computer/danganronpa2goodbyedespair/ Of course it isn't finding the actual videos, but it is a crucial part.

How peculiar. If it'd be possible to find the channel that had originally uploaded them, contacting them would be a good first start. However, if I recall correctly, the majority of these videos were simply official art with the voice files overlayed so they would not be difficult to recreate if need be.