Just in case mere scratches aren't bad enough, this disc has been somewhat more thoroughly abused and has some actual cracks and chips. 光盘 紧凑 光盘 严重损坏的光盘
Sometimes when a CD (or DVD or other optical disc) is mistreated, it develops surface damage. After that it usually doesn't play so well, may develop skips or other glitches, and may need to be resurfaced. 光盘 紧凑 光盘 损坏的光盘
Some of the damage wasn't very visible at small sizes, so I made it a bit more obvious. 光盘 紧凑 光盘 多个明显损坏的光盘