Disc Sizes

• 

CD (Compact Disc)

A typical CD can hold up to 600 MB of information (allowing for retrieval software to be stored)

600 MB = ~600,000 KB

Given that an average A4 Black & White document is 30 KB

600,000 / 30 KB = ~20,000 documents on a CD

DVD (Digital Versitile Disc)

A typical DVD can hold up to 4.3GB of information (allowing for retrieval software to be stored)

4.3 GB = 4,300 MB = ~4,300,000 KB

4,300,000 / 30 KB = ~145,000 documents on a DVD

 

Larger File Sizes

• An average grayscale document is 300 KB / ~15,000 per DVD
• An average A4 Colour is 1,500 KB / ~3,000 per DVD

 

Compatibility

Encryption