Grading the quality of a LD is not always an easy task. I tried to keep a practical strategy to evaluate both covers and discs as well as extras sold with and part of the title.

New/Sealed - has never been played

10

Factory sealed (not privately re-sealed) with no sticker/hole/bending/spine punch, etc. The state is was when it left the manufacturing stock.

9

Still new and sealed but some discoloration can be seen, the outer sealed plastic sleeve and sticker removed in a bad way or disc(s) moved inside and started punching through the spine(s)

Mint/Near Mint - only minor things, plays flawlessly

8

What it gives when you finally decide to open a 10/10 to play it, although the plastic is removed everything inside remains in mint/pristine/perfect condition.

7

A "Near Mint", there's not specific damage, but you know when looking at it that it was previously owned/used. Good care was taken to avoid any damage. Can also be a perfect Japanese copy, but the obi or the insert is missing.

6

An "very good to excellent" condition LD. If nothing's missing then you can see that the cover shows it's a used copy/the disc shows scuffs/fingers when inspected closely, obi/insert missing or no protective plastic sleeve. Still plays without any problem.

Used/Heavily Used/Damaged

5 to 1 to

Either LD shows rot or has many scratches/scuffs, cover is damaged (or even missing), obi/insert missing, etc. We could imagine you want to sell only the Obi (why not?) then it would get a 1/10. A cover only would get from 1 to 3 depending on its condition. Same goes for "disc(s) only" from 1 to 3 depending on their condition(s).