A standard 120 mm, 700 MB CD-ROM can actually hold about 703 MB of data with error correction (or 847 MB total). In comparison, a single-layer DVD-ROM can hold 4.7 GB (4.7 × 109) of error-protected data, more than 6 CD-ROMs. Note: megabyte (MB) and minute (min) values are exact; (1 = 220) values are approximate.
How much storage is on a DVD?
As a result, the DVD specification provided a storage capacity of 4.7 GB (4.38 GiB) for a single-layered, single-sided disc and 8.5 GB (7.92 GiB) for a dual-layered, single-sided disc.
Which has more storage capacity a CD or a DVD?
DVD Media. Digital video discs have a significantly higher storage capacity than CDs and offer a fuller, multi-channel sound (such as surround-sound) experience. To utilize dual-layer technology, you must have both a compatible disc writer and dual-layer media.
