you're all wrong
A DVD-R holds 4.37GB (4,700,000,000 bytes). also known as 4.7GB.
Companies dont use "computer gigabytes" to sell their products.
1 "computer gigabyte" is 1,073,741,824 bytes. 1 "company giga byte" is actually 1,000,000,000 bytes.
computers divide bytes by 1024, because that is a power of 2, where companies advertise them as divided by only 1000, for ease.
thats why a 100GB harddrive, is actually 93ish GB.
no dvd is larger. Vice City is 4.347GB. Smaller than a dvd of 4.37GB.