And this is how the drives process the bad audio CD. The average speed of the ASUS DVD-E616P3 becomes smaller, but its quality score is quite satisfactory. The Plextor PX-130A slowed down, too, but its quality score is far from 100%. The Sony DDU1615 didn’t drop its speed at all and thus got a worse quality score than the ASUS’s but better than the Plextor’s. The Sony DDU1622 was reading the bad audio CD at a high average speed and achieved a rather high quality score. Strangely enough, the Toshiba SD-M2012 processed the scratched disc at a higher speed than the normal one. Its quality score is acceptable, being only 1% below the possible maximum.