DVD geometry

Hello,

Does anyone know what is the geometry of a DVD? All of them( DVD3, DVD5,
DVD9, DVD18).

I need this:

bytes per sector = ? (i think this is 2048)
sectors per track = ?
tracks per cylinder = ?
cylinders = ?

I have all the ECMA docs (167,168,271)… I didn’t find this in these
docs.

PLEASE… HELP!!!

Thank you,
Ciubotaru O. Andrei