A Man There Was I believe was in that top 10 however, and I just found out yesterday that there is a DVD available of Douglas Fairbank's early comedy Wild and Woolly (another 1917 release) so great strides in WWI era films being made on DVD. 

I've seen The Phantom Chariot so I can wait for the eventual R1 release, I just saw it in a low grade VHS copy so can't blame me for wanting a more authoritative restored print. Next order of DVD's I'm planning on getting Kino's Lubitsch in Berlin set (I'm amazed I didn't get it sooner) and I'll report back.