Sony PCV-RX480DS System Reference Manual - Page 128

114 VAIO Digital Studio™ System Reference Manual Optical Drives PCV-RX462DS/PCV-RX463DS/PCV-RX465DS/PCV-RX470DS/PCV-RX480DS Drive DVD-ROM drive* CD-RW read† DVD-ROM read‡ CD-R/CD-ROM read** CD-RW drive†† CD-RW read‡‡ CD-R/CD-RW write*** CD-R/CD-ROM read††† Description 32X maximum performance 16X maximum performance 40X maximum performance 20X maximum performance 8X maximum performance 32X maximum performance * The DVD-ROM data transfer standard 1X rate is 1350 KBps. † Data on a CD-RW is read at a variable transfer rate, ranging from 13X at the innermost track to 32X at the outermost track. The average data transfer rate is 22.5X (3375 KBps). ‡ Data on a DVD-ROM is read at a variable transfer rate, ranging from 6.6X at the innermost track to 16X at the outermost track. The average data transfer rate is 11.3X (15255 KBps). ** Data on a CD-R/CD-ROM is read at a variable transfer rate, ranging from 17.5X at the innermost track to 40X at the outermost track. The average data transfer rate is 28.6X (4293 KBps). †† The CD-RW/CD-R/CD-ROM data transfer standard 1X rate is 150 KB per second (KBps). ‡‡ Data on a CD-RW is read at a variable transfer rate, ranging from 8X at the innermost track to 20X at the outermost track. The average data transfer rate is 14X (2100 KBps). ***Data on a CD-R/CD-RW is written at a constant transfer rate of 2X, 4X, 8X (max. for CD-RW), or 12X, depending on the speed you select. ††† Data on a CD-R/CD-ROM is read at a variable transfer rate, ranging from 13X at the innermost track to 32X at the outermost track. The average data transfer rate is 22.5X (3375 KBps).