Anyone who buys a recordable MD player will find a thin optical fiber cable in the box (Figure 1), which is used for digital dubbing. Use this optical fiber cable to connect the CD player and the MD player together, and you can use the MD to rip the tracks on the CD losslessly. Since the CD player directly converts the digital audio signal into an optical signal and transmits it to the MD when ripping, without the need for digital-to-analog conversion, the ripping process is almost a data copy, and the high quality of the ripping can be imagined. However, if there is no optical output interface on your CD player, you can only stare. Since there is no CD player with an optical output interface, I was unable to use optical fiber cables in the year after purchasing the MD player. I used an analog linear output interface when ripping tracks from CDs, and the effect was good. Net MD has appeared recently. The new MD can download music from the Internet and computers like an MP3 player. My MD machine (MZ-R70) cannot be connected to the computer, and there is no optical output sound card, so I cannot copy the music files from the computer. The R70, which originally felt good, turned out to be useless in comparison. However, something happened recently. I bought a DVD-P528 DVD player produced by HiVi. This is really a powerful DVD. In addition to playing DVDs, it can also play many kinds of discs such as CD-R and MP3. Even HI)CDs that are not mentioned in the manual can be played.