I'm not really up on this stuff but i can say this. When i used nero, i thought it was totally pointless to even have that stuff on because the titles never showed up. Then i put a cd in my brother's car and it worked perfectly. I've also been told that media players get the info off the net. I just bought a cd that shows up as untitled for everything on any system but real player can find the info. When i was trying to figure it out, most people told me it was relatively pointless because the player is what is going to read it.
That's my experience and what i've been told. I won't claim it to be 100% correct.