It's about as much as a DVD
It's about one-and-one-tenth times as much as an HDTV Television Show (30 Minutes)
In other words, 4,900,000 kilobytes is 1.11 times the amount of an HDTV Television Show (30 Minutes), and the amount of an HDTV Television Show (30 Minutes) is 0.901 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 2,460 kilobytes of data per second, or 4,420,000 kilobytes 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 six-and-a-half times as much as a Compact Disc
In other words, 4,900,000 kilobytes is 6.49 times the amount of a Compact Disc, and the amount of a Compact Disc is 0.1541 times that amount.(80-minute, 360,000 sector disc; "Red Book" specifications)
A typical, 80-minute capacity compact disc, commonly known as a 716,800 kilobytes disc will actually hold 755,000 kilobytes of data. Such disks are 1.2 mm (0.047 in) thick.
It's about one-tenth as much as a Blu-ray Disc
In other words, 4,900,000 kilobytes is 0.09 times the amount of a Blu-ray Disc, and the amount of a Blu-ray Disc is 11 times that amount.(a.k.a. BD) (dual-layer; Blu-ray disc)
A typical Blu-ray disc will hold 52,000,000 kilobytes 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-tenth as much as Wikipedia
In other words, 4,900,000 kilobytes is 0.09 times the amount of Wikipedia, and the amount of Wikipedia is 11 times that amount.(2009 figures) (all languages)
As of 2009, Wikipedia held 56,000,000 kilobytes 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 one-thirty-fifth as much as an iPod
In other words, 4,900,000 kilobytes is 0.029 times the amount of an iPod, and the amount of an iPod is 34.2 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 168,000,000 kilobytes. 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 900 times as much as The Complete Works of William Shakespeare
In other words, 4,900,000 kilobytes is 900 times the amount of The Complete Works of William Shakespeare, and the amount of The Complete Works of William Shakespeare is 0.001 times that amount.(ASCII, plain text)
The Complete Works of William Shakespeare would occupy about 5,400 kilobytes 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.