Although the earliest MD walkman was about the same size as the CD walkman, it was further reduced with the update of technology ~
The MD Walkman, like the tape Walkman, can be divided into two types: recording and playback.
Recording and playback means that you can play MD discs or record blank ones (some tape walkman is like this), and single playback means that you can only play MD discs with contents, but you can't record them ~ ~
I think MD has the following advantages.
1. Small in size, compared with CD walkman and tape walkman, it can basically be put in your pocket and easy to carry ~
2. Excellent voice. At the beginning, MD was recorded with optical fiber, and Sony's advanced coding algorithm ensured the sound quality, which was close to the effect of CD ~ It can be said that Japanese manufacturers such as Sony, Panasonic and Sharp at that time focused on the research and development of MD ~ Compared with CD and tape walkman, they didn't care so much ~
3. Easy to edit, such as song titles and album titles, which can be edited on the machine. At that time, when there was no MP3 format, it was very advanced ~ Moreover, the MD disk was very cheap, and a blank one cost more than ten yuan ~ Moreover, the MD played for a long time, with a nominal battery life of several hundred hours. In actual use, dozens of hours is no problem, which MP3 walkman can't reach ~
4. The structure is complex, it is heavy in your hand, and it has a sense of science and technology ~ The feeling of using it is absolutely incomparable to CD walkman and MP3 walkman ~ ~
Disadvantages:
1. One is that it is more troublesome to record MD disks. In order to get high-quality sound, we need to use optical cable to record synchronously, and the capacity of MD disc is small, only about 160MB ~ Although NETMD was introduced later, it is still troublesome to transmit ~
2. Short service life. Due to the high degree of internal mechanization, the structure is much more complicated than that of players such as CD and MP3. , so the service life is short, and problems will appear one after another after two or three years of general use ~
3. The price is high. MD is an electronic consumer product. Every time a new model is introduced, the mainstream recording and playback model will cost about 2,000 yuan, and the stand-alone model will cost about 1500 yuan. The price is twice that of Sony's own CD walkman, but it is still much more expensive than CD walkman. Most people can buy an MP3 player for a few hundred dollars, and the requirements for sound are not high. For consumer goods like MD,
MD technology is very closed and only a few Japanese manufacturers have mastered it. Historically, MD Walkman's manufacturers are all Japanese manufacturers, but Sony, Panasonic, Aihua, Pioneer, Jianwu, Sharp, Tianlong, etc. are not conducive to promotion. By the end of last century, the popularization and development of MP3 format had a great impact on MD ~, and now many MP3s support lossless compression format, even HIMD technology with sound as its selling point has no great advantage.
All the above factors have caused all manufacturers to give up the development of MD, and the MD Walkman has basically disappeared ~ (MD technology is now used on Sony PSP, and UMD he uses is a large-capacity follow-up product of MD disc)
In fact, MD technology is transformed from MO technology, but MO disk is not used for walkman ~ South Korea has also developed a storage medium similar to MD called DATAPLAY, which is also an optical disk, and produced several walkman products, but none of them have been popularized in the end ~