As for most modern disc players, it has error correction and can usually read through fingerprints as scratched surface. If the disc has your finger print or small scratches because of bad handling, chances are old disc players can’t read the disc properly. The only problem with CD and DVD disc is it don’t last forever and also it’s sensitive. This means that if you insert the disc onto any computer, no one including powerful virus such as Almanahe that infects executable files is able to modify or delete the files that are written to the disc.
Moreover, writing your files to discs as backup does have another advantage where the data are read only. A CD-R can store up to 700MB of data while a DVD-R contains 6 times more space than a CD-R.
Discs are one of the best media that can be used for backup purposes because they are relatively cheap today.
