It's about one-third as much as a Blu-ray Disc
In other words, 16 gigabytes is 0.32 times the amount of a Blu-ray Disc, and the amount of a Blu-ray Disc is 3.1 times that amount.(a.k.a. BD) (dual-layer; Blu-ray disc)
A typical Blu-ray disc will hold 50 gigabytes (gB) of data. The increase in capacity versus a standard DVD is possible because of the smaller wavelength of blue light — 405 nanometers instead of 650 nanometers for the red laser light used in a DVD.
It's about three-tenths as much as Wikipedia
In other words, 16 gigabytes is 0.3 times the amount of Wikipedia, and the amount of Wikipedia is 3.3 times that amount.(2009 figures) (all languages)
As of 2009, Wikipedia held 53 gigabytes (gB) of publicly written and edited encyclopedia articles on 14.5 million subjects as well as associated commentary and discussion. Wikipedia is among the ten most popular websites on the Internet and the only non-profit entity in that group.
It's about three-and-a-half times as much as a DVD
In other words, 16 gigabytes is 3.4 times the amount of a DVD, and the amount of a DVD is 0.29 times that amount.(a.k.a. digital video disc) (single-side, single-layer; DVD-5 specification)
A typical capacity digital video disc will hold 4.7 gigabytes (gB) of data. Such disks are 1.2 mm (0.047 in) thick.
It's about four times as much as an HDTV Television Show (30 Minutes)
In other words, 16 gigabytes is 3.79 times the amount of an HDTV Television Show (30 Minutes), and the amount of an HDTV Television Show (30 Minutes) is 0.264 times that amount.(a.k.a. High Definition television, a.k.a. HD) (digital signal, QAM-256; 30 minutes)
Broadcast cable HDTV signals contain about 0.00234 gigabytes of data per second, or 4.22 gigabytes (gB) in a thirty-minute television show. The first High Definition television broadcast was news footage from John Glenn's 1998 mission on the space shuttle Discovery.
It's about one-tenth as much as an iPod
In other words, 16 gigabytes is 0.100 times the amount of an iPod, and the amount of an iPod is 10 times that amount.(a.k.a. Apple iPod) (2010 figures; for iPod classic, sixth generation)
A sixth-generation, iPod classic MP3 player offers a storage capacity of 160 gigabytes (gB). Data is stored in the unit's hard drive, a 5,400 RPM SATA drive, which measures about 30 sq. cm (5 sq. in)
It's about twenty times as much as a Compact Disc
In other words, 16 gigabytes is 22.22 times the amount of a Compact Disc, and the amount of a Compact Disc is 0.05 times that amount.(80-minute, 360,000 sector disc; "Red Book" specifications)
A typical, 80-minute capacity compact disc, commonly known as a 0.68360 gigabytes disc will actually hold 0.720 gigabytes of data. Such disks are 1.2 mm (0.047 in) thick.
It's about one-two-hundred-fiftieth as much as Watson
In other words, 16 gigabytes is 0.004 times the amount of Watson, and the amount of Watson is 260 times that amount.(data store only)
Watson, the IBM supercomputer famous for competing against humans on the televised trivia game show Jeopardy!, utilizes 4,100 gigabytes of variously-structured data to formulate answers. While "thinking", Watson processes about 500 gigabytes of data per second.