it is a secure way of storing data but not 100% - as cdr's and cdrw's do fail sometimes. for essential stuff it is best to make two copies of any cdr or cdrw (storing then in different places)
Samsung Galaxy S8 review
1995-2015: How technology has changed the world in 20 years
What’s happening in VR right now: From psychedelic art to combat therapy
Siri not working? Try these troubleshooting fixes
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.