The tracks have names on disc 3! The titles come from the lyrics after 2 u / 4 u.
Tada Hitori Kimi no Tame Nara ~Song 4 u~ and Shinjiteru Shinjirareteru ~Song 4 u~.
ただひとり 君のためなら ~Song 4 u~ and 信じてる 信じられてる ~Song 4 u~.
I want to hear them! Hope they get ripped somehow.