Questions About Singles

[mellody]

Sorry If this already posted before...

Okay, this is the main question :

What is a Maxi Single?

Is it just an usual single with standard 4 tracks like INSPIRE?
A-Side + B-Side and any examples?
Or just like Mirrorcle World and such (one titled singles)?

But, another questions appears according to those singles...

INSPIRE singles have a real name INSPIRE c/w GAME
fairyland singles also have fairyland c/w alterna
So, what kind of singles is that?

If they are Double A-Side Single, isn't Double A-Side Single are like this?

• Days / GREEN
• You were... / BALLAD
• STEP you / is this LOVE?

Please share your knowledge...

Thanks!