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| How does cd read the sound? |
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| The ruggedness made a disk when writing it is read by the laser. And, the difference of the sound is understood. However, it is not because the vibration is made a sound as it is unlike the record. |
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| What are CD and the record made first in the world? |
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| CD made first in the world is Billy Joel's album "New York 52 street".The one that Thomas Edison recorded "Mary's sheep" on December 6, 1877 is the oldest in the world on the record. |
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| What is CD whose collection time is the longest in the world? |
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"The Ones" of Mariah Carey who had been put on the market in 1998 was the longest in the world.
However, flumpool was announced in December, 2009, "Album at the longest in the world collection time" at 58 seconds of 79 minutes by album "What 'S flumpool". Mariah's record was broken. However, "Re:MIKUS" that livetune had put on the market as "Livetune feat.Hatune Miku in March, 2009 recorded 45 seconds of 80 minutes. This exceeds 80 minutes called a limit at the collection time of CD. Therefore, CD whose recording time is in fact longest in the world is this album. |
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| Does the needle of the record consist of what? |
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| The material of the record needle should be strong. Therefore, the one made of the diamond is the main. When it is quality goods, the diamond of Muku is used though a small industrial diamond (one unsuitable as the jewel) is put up to the point of the base material in the cheap one. The sapphire that processed it easily seems to have been used though strength was less when it was a needle of the low price. |
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| Are not you damaged though DJ's person is quickly doing the record in scratch? |
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| If it is a ”RECORD”, it is deteriorated. However, it depends on the way. If it is only scratch, it is safe. |
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