Many people think: “How to save data for years?” Those who don’t do it, may simply not know that a CD with photos from a wedding, videos from a children’s holiday or other family and business information will most likely not be readable after 5-10 years, because the disc may be broken or scratched. There are a lot of general principles that apply to any type of information (photographs, text, or files) and that can increase the probability of successful access to it in the future.
The larger the number of copies, the longer the data will “live”: a book printed in million copies, a disk copied by CD duplication, a photograph printed in several copies for each relative and stored digitally on different drives will most likely be stored and accessible for a long time. It is important to check availability of data, to save them again using new methods and devices that have appeared.