Compact Disc play side grading scale:
10 - Mirror surface looks new, clear of any abrasions, scuffs or marks.
9 - Disc may have one or two light marks but no more
8 - a few whispy marks or scuffs apparent
7 - this disc will have some light marks that do not affect play - an average disc
6 - more pronounced marks on this disc that may affect play on cheap cd players
5 - 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?