Sociology says that we live in information-oriented community nowadays. It means that our dwelling is highly dependent on data. But from time to time your precious data may get lost. Some information, that is important for persons, is believed to be always in safe. Such attitude usually intensifies a risk of its loss. Users must always think about safety measures and the greatest way is to protect both physical and logical systems from any defects.
Physical damage can happen any time to any of the info carrier. A CD or DVD disk may be scratched and some of its metallic substrate will get lost. Hard disk may stop working too, when its head will be broken or its motor stop. When you would use deleted file recovery after some severe damage, you will come across a few interesting thoughts like chilling of the hard disk or special rotating of it. Info restoration experts advise against applying such modes. You can try such a mode that will absolutely damage your hard drive and you will lose you data forever. Furthermore, every restoration may bring extra corruption, even if it was done in a correct way. Expert hard disk recovery requires peculiar dust free facilities and file recovery tools that are often very sophisticated for an untrained consumer.