DVD vs. Blu-Ray: What’s the Difference?
The main difference between DVD and blu-ray is that DVDs use red laser technology whereas blu-ray utilizes blue laser technology.
Before we move to more differences, let’s first understand DVD and Blu-Ray:
- DVD: DVDs, or digital versatile discs, are optical storage mediums that use a laser to read and write data.
- Blu-Ray: Blu-Ray discs are a newer type of optical storage medium that use a blue laser with a shorter wavelength of 405 nanometers to read and write data.
Now, let’s get to DVD vs Blu-Ray:
Major differences between DVD and Blu-Ray
| DVD | Blu-Ray |
|---|---|
| DVDs offer video resolution in standard definition (480p). | Blu-rays provide high-definition video (up to 1080p or even 4K). |
| DVDs have more limited audio capabilities. | Blu-rays generally offer superior audio quality with support for advanced audio codecs, such as Dolby TrueHD and DTS-HD Master Audio. |
| DVD players cannot play Blu-ray discs. | Blu-ray players are backward compatible with DVDs, meaning they can play DVDs in addition to Blu-ray discs. |
| DVDS are generally less expensive than blu-ray discs. | Blu-ray discs are generally more expensive than DVDs |
| DVDs have a lower storage capacity (4.7 GB to 8.5 GB). | Blu-rays have a higher storage capacity (25 GB to 50 GB). |
So, these are the main differences between the entities.
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