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    The difference between CD, DVD and Blu-ray discs

    For the most part your optical drive bay, where you put your cd into the computer, is used for the delivery of information to your computer.

    A lot of the time you can get data (music, movies, information) onto your computer via USB thumb drive or downloaded form the internet. However, for larger amounts of data such as High Definition Video and movies, optical storage such as Blue-ray is needed to deliver the information quickly.

    As well as receiving data from optical media, you can also use to it to store data. Unlike your computer where data can be compromised by a virus or electricity, storing your data on a CD can keep it safe and sound away from your computer.

    Townsville computer repairs storage media dvd cd blu-ray

    So what is the difference between CD, DVD and Blu-ray discs.

    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.

    Although most DVD burners will be able to burn to CD’s as well, for the most part you need a burner specific to the media you are trying to burn to.

    Therefore, if you want to be able to burn to Blu-rays and CD or DVD burner wont work. You will need to purchase a Blu-ray burner.

     

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