However, 9310i of Hewlett Packard performs better than 8x model. Panasonic CW-7585 shows 8x initial and 16x terminal speed. Sony and Hewlett Packard have similar results. Sony showed the lowest result. Samsung showed the highest speed and no falls.
Yamaha recorder has similar graphs both of CDs of normal and low quality, but they are too uneven.
Sony despite the low speed has made minor errors. Next to it stands Hewlett Packard 9310i which has more errors. Since the disc structure is nonuniform and compound, the results were low even for 32x devices. Copying of normal quality CD As for data reading, Samsung drive is the first. Ricoh is behind with 1 minute difference.