In this article we will talk about the difference between DVD and Blu-Ray video disc. Home entertainment in 2010 is dominated by digital video discs (DVDs) and Blu-ray discs.
Blu-ray Disc capacity increases by 5 to 10 times over DVD, similar to how DVD made 5 to 10 times over CD.
While new technologies typically supersede old ones rapidly, Blu-Ray discs and DVDs appear to have been coexisting in the market for quite some time.
Blu-ray is a new disk storage format that has a number of advantages over DVDs. In this lesson, we’ll learn about Blu-ray discs and DVDs, as well as how they differ from one another.
What is DVD?
DVD stands for “Digital Versatile Disk” or “Digital Video Disc”. DVD is a technique that converts video and other digital data into a compressed form.
They are used to store any type of digital data, but it’s notably popular for storing texts, photos, music, and videos.
It was a game changer in terms of data storage. It can store 4.7 GB of data in single layer.
It’s also available in the DVD-R and DVD-RW formats, which are both popular. They are used to write and erase data on a DVD disc.
At the end of the 1990s, this technology was made commercially available. It was designed to replace analog VHS cassettes in video cassette recorders (VCRs) and CD-ROM in personal PCs and servers.
Some people are perplexed by the difference between these two optical disks because they have the same shape, size, and appearance.
What is Blu-Ray?
Blu-ray is a digital disc storage format, similar to CD and DVD, that allows you to store and play large amounts of data in high-definition. It was primarily designed to store high-definition videos, which were previously impossible to store using DVD technology.
The name “Blu-ray” stems from the fact that it reads the disc using a blue laser, which allows for higher data density than DVD, which uses a red laser. It is recommended and produced for high-definition(HD) videos.
The storage capacity of Blu-ray discs is 25GB of data in single layer. It is obviously larger than previous disk formats.
Blu-ray discs are the same size as CDs and DVDs before them, but they can’t be played on standard CD or DVD players; instead, you’ll need a Blu-ray disc drive. However, the top Blu-ray players can also play CDs and DVDs, providing some backwards compatibility.
- Also Read: Difference Between Blu-Ray And HD DVD
- Also Read: Difference Between Blu-Ray And 4K Blu-Ray
Difference Between DVD And Blu-Ray Disc: DVD Vs Blu-Ray
| DVD | VS | Blu Ray |
|---|---|---|
| A DVD is also an optical disc storage format that can store SD videos easily. | Objective | A Blu-ray is an optical disc format that can store digital data including HD videos. |
| It can store 4.7 GB of data in single layer. | Storage | It can store 25 GB of data in a single layer. |
| 720×480/720×576 (480i/576i) | Video resolution (max) | 1920×1080 (1080p) |
| 11.08Mbps (1x) | Data transfer rate (data) | 36.0Mbps (1x) |
| 9.8Mbps | Video bit rate (max) | 40.0Mbps |
| Expensive | Cost | Cheap |
| Red | Type of laser used | Blue |
| Low | Security | High |
| 650 nm | Laser wavelength | 405 nm |
| 0.6 mm | Protection layer | 0.1 mm |
| It produces a less sharp, less bright and less detailed images compared to Blu-Ray. | Movie images | It produces a sharper, brighter and detailed image. |
| Able to operate in any video player. | CD player | Unable to operate in a traditional DVD player. |
| They do not aid in the upgrade of movie visuals. | Improve images | They aid in the upgrade of movie visuals. |
| It has normal resolution and normal audio. | Quality | It has high resolution and superior audio. |
| Analog cables. | Cables | HDMI cable. |
| It’s thick layer meant to withstand scratching. | Protective layer | The scratch-resistant protective layer is thin and has a strong coating. |
| DVDs can be played on any Blu-ray player. | Player compatibility | Blu-ray discs cannot be played in all DVD players. |
| Middle of the disk. | Location of the metal layer | Near to the reading mechanism’s objective lenses. |
| RS-PC and EFM plus. | Correction codes | Picket codes. |
| 0.6 | Numerical Aperture | 0.85 |
| Many | Encoding | MPEG-2, MPEG-4 AVC (H.264), and VC-1 HEVC (H.265 ) |
| 11.08 Mbit/s | Maximum Bitrate (Raw data) | 53.95 Mbit/s |
| 10.08 Mbit/s | Maximum Bitrate (Audio+Video) | 48 Mbit/s |
| Rudimentary | Interactivity | Blu-Ray Disc Java |
| 6 regions | Region Code | 3 Regions (Optional), Region-free Ultra HD |
| Optional | Hardcoating of disc | Mandatory |
| DVDs are used to store: Animations, movies, and videos. | Usage | Data storage, High-definition video (1080p) High-definition audio, Stereoscopic 3D, PlayStation 3 games, PlayStation 4 games, Xbox One games |
| 120 mm (4.7 in) diameter, 1.2 mm (0.047 in) thickness | Dimensions | 120 mm (4.7 in) diameter, 1.2 mm thickness |
| Sony Panasonic Philips Toshiba | Developed by | Blu-ray Disc Association |
Conclusion
In comparison to a DVD disc, Blu-ray provides high data storage, high-definition quality videos, security, and compatibility, as discussed above. DVDs are still a decent choice if you don’t care about picture quality and want to save money.
However, a twin layer Blu-ray can carry up to 50 GB of data, which is 6.7 times the capacity of a dual layer DVD. As a result, as compared to DVD, blu-ray offers more storage space, data rate, security, and compatibility.
- References: www.scientificamerican.com
- References: www.britannica.com
- References: en.wikipedia.org
- References: Image by BUMIPUTRA from Pixabay