Nothing causes CD-ROM

Users questions: Some pirated disc nothing. Asked someone, they said printed pattern must have the contents printed on the inside, not what is the format. Is that right? Or some other reason? What is it not the contents of ah? Also, some disk is said to have been drawn to flowers, but no scratches ah, and some may have scratches Is lying normal, what is the reason for ah
Experts answer:1. Some of the actual disc piracy is not content, is fraud .2. Some of pirated disks are encrypted disk, that is, in the production process hidden directories and files need to enter the correct password to read to .3. no scratches on the disc may not be able to read, because a CD-ROM is written as the success rate of about 80%, that is engraved disc 100 may have 20 or so after that can not be used, many reasons, such as quality of the disc write speed problems, etc. * .4. There There are scratches, but lying is normal, in fact the surface of the disc during use may lead to a Some scratches, as long as the coating on the back of the disc is not bad, this CD-ROM or CD-ROM can be used **- back coating is used to reflect the laser to read data bald, even if you use the CD-ROM is the new good, you try a little scrape on the back coating must not be able to use it!
  • This information provided by the users.Thanks!