Question

difference between cd ,dvd and Blu-ray​

Answer 1

Explanation:

Generally speaking, when people decide to use each of these different discs it is really dependent in what its use will be for.

Traditionally we have stored music on CD’s (Compact Discs), Standard definition movies on DVD’s (Digital Versatile Disc) and High Definition Video on Blu-rays.

CD (Compact Disc)

Compact discs are very low density and have the smallest data storage capability.

You can store about 700 MB of data on most CD’s. It doesn’t sound like a lot but when I was growing up we only had floppy disc drives which could sore less than 2 MB. When CD’s came out we were wrapped and its all anyone could talk about in the computer industry.

DVD (Digital Versatile Disc)

Because of the higher storage capability of DVD’s of around 4.2 GB it became the standard for storing Movies on in the 2000’s.

Suddenly we had the ability to store all this information we couldn’t on a CD. The movie industry jumped on board and before you new it we needed more space and better quality!

You can also store the same information onto DVD’s as you can on a CD. The only difference is you can store a lot more.

Blu-ray Discs

Blu-ray discs are a much higher density upgrade on the DVD standard.

With much higher storage capability, up to 128 GB movies and colours appear much more vibrant and audio sounds much more richer. Blu-ray discs get their name from the type of laser needed to burn the data onto the discs which is Blue and Violet.

Blu-ray discs cost more than CD’s and DVD’s.

Burning CD’s, DVD’s and Blu-rays

Although all these discs looks very similar on the surface, they are indeed different.

For most of us, we use these discs to read the information on them, but you can also transfer information back the other way to the discs. This process is called burning as a laser is used to facilitate the transfer to the discs.

You can not use a CD burner to burn DVD’s and Blu-ray Discs.

Answer 2

Answer:

difference between cd ,dvd

The CD and DVD are the optical recording medium where CD was devised as an audio storage format while DVD is used as the universal storage format. The latter technology DVD can hold data about 7 times more than CD and its format efficiency is also 32% greater than a CD.

difference between Blu-ray

Blu-Ray discs have more storage capacity — a LOT more. A standard DVD holds 4.7 gigabytes of data. ... If that movie is longer than two hours, you need two DVDs or a double-layer DVD that can store around 9GB. On the other hand, a double-layer Blu-ray disc can hold a massive 50 GB of data.