How can I completely destroy the CD?

Of course, cutting it will destroy the disc data. Because the CD is written in 256 k bytes as a sector, and when writing to the CD, each sector is discontinuous. For example, taking a 3 mb photo will naturally separate at least 12 sectors and record them on the optical disc (because the optical disc drive rotates at a constant speed); Without sectors, photos cannot form a complete photo file.

Simply and directly ... burn it ... but you have to burn it.

Is the CD information really sensitive? You can go to city/price in Japan. If you have a CD shredder, you can also try a CD shredder. Not expensive, it seems that 100 is more than 200 yuan. The granularity of CD turning left is large, and the cost of reading a small amount of data is very high.

Reference: aok 10 1

CDs can be chopped with a shredder.

You can't read the materials. There are paper machines on the market that can break CDs. )

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Reference: Personal Views+Links to the above pages