It's about seven-tenths as much as a Compact Disc.
In other words, 518 megabytes is 0.70260 times the amount of a Compact Disc, and the amount of a Compact Disc is 1.4230 times that amount.(80-minute, 360,000 sector disc; "Red Book" specifications)
A typical, 80-minute capacity compact disc, commonly known as a 700 megabyte (mB) disc will actually hold 737.3 megabytes (mB) of data. Such disks are 1.2 mm (0.047 in) thick.
It's about one-tenth as much as an HDTV Television Show (30 Minutes).
In other words, 518 megabytes is 0.120 times the amount of an HDTV Television Show (30 Minutes), and the amount of an HDTV Television Show (30 Minutes) is 8.330 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 2.4 megabytes (mB) of data per second, or 4,320 megabytes 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 a DVD.
In other words, 518 megabytes is 0.110 times the amount of a DVD, and the amount of a DVD is 9.10 times that amount.(a.k.a. digital video disc) (single-side, single-layer; DVD-5 specification)
A typical capacity digital video disc will hold 4,800 megabytes of data. Such disks are 1.2 mm (0.047 in) thick.
It's about 100 times as much as The Complete Works of William Shakespeare.
In other words, 518 megabytes is 98 times the amount of The Complete Works of William Shakespeare, and the amount of The Complete Works of William Shakespeare is 0.01 times that amount.(ASCII, plain text)
The Complete Works of William Shakespeare would occupy about 5.3 megabytes (mB) when written in plain text without formatting. These works include 38 definitively-attributed plays — 11 tragedies, 17 comedies, and 10 tragedies — as well as 154 sonnets and numerous other poems.
It's about one-one-hundredth as much as a Blu-ray Disc.
In other words, the amount of a Blu-ray Disc is 100 times 518 megabytes.(a.k.a. BD) (dual-layer; Blu-ray disc)
A typical Blu-ray disc will hold 51,000 megabytes 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 one-one-hundredth as much as Wikipedia.
In other words, 518 megabytes is 0.0096 times the amount of Wikipedia, and the amount of Wikipedia is 100 times that amount.(2009 figures) (all languages)
As of 2009, Wikipedia held 54,000 megabytes 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 200 times as much as a MP3 Song.
In other words, the amount of a MP3 Song is 0.005 times 518 megabytes.(a.k.a. MPEG-1 Audio Layer 3, a.k.a. MPEG-2 Audio Layer 3) (128 Kbps, "near-CD-quality"; 3 minutes duration; average)
A three-minute song of typical quality will be about 3 megabytes (mB) when encoded into MP3 format. The song Tom's Diner by Suzanne Vega was used by AT&T-Bell Labs engineer Karlheinz Brandenburg to test the compression process and is considered the first MP3 song.