Below is a quick way to determine the size of your data:

Every Megabite is around 75 pages
Every Gigabite is around 75,000 pages
Every CD is around 50,000 pages
Every DVD is around 350,000 pages
Every DLT Tape is around 5,000,000 pages
Every Super DLT Tape is around 7,000,000 pages

Most Emails are 1.5 pages
Most Word Document are 8 pages
Most Excel Spreadsheets are 50 pages
Most PowerPoints are 14 pages


The average 100 MB .PST file is 900 emails and 300 attachments
The average 400 MB .PST file is 3,500 emails and 1,200 attachments
The average 600 MB .PST file is 5,500 emails and 1,600 attachments
The average 1.00 GB .NSF file is 9,000 emails and 3,000 attachments
The average 1.5 GB .NSF file is 13,500 emails and 4,500 attachments