This has been caused by scratching the CD when writing on it.On the back of the blank CD-R packaging it says to write on the gold (non-recording) side with a permanent felt-tip marker. If a Sharpie-type pen is used, it could scratch the CD Apparently the Sharpie has a hard enough core to scratch the metal backing. If you look on the green (recording) side, and you see a metallic image of the writing on the other side, then the CD is probably damaged.