Compact Disc play side grading scale:
10 - (Mint) Mirror surface looks new, clear of any abrasions, scuffs or marks.
9 - (NM-) Disc may have just a few very light marks
8 - (Ex) a few more marks or scuffs apparent
7 - (VG+) this disc will have light marks and/or scuffs that do not affect play - an average disc
6 - (VG) more pronounced marks on this disc that may affect play on cheap cd players
5 - (VG-) perhaps one or two bad marks or pervasive scuffing that may affect play on cheap cd players
4 - Badly scuffed - will not sell at or below this grade level
3 - Trashed
2 - Arts and crafts project
1 - Hockey, anyone?