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What is the difference $ / GB: between CD, DVD, BluRay and USB!


There is a significant difference between CD, DVD, BluRay and USB in terms of cost per gigabit, ... etc!




In advance! 

USB is just an interface 

the CD, DVD, BluRay are data carriers , media, data storage devices. 

The main difference for a user, who also interests him the most, is the amount of data and the price per GIGABIT of data.  



As of Thursday, June 7, 2018 

CD 600-900 MB
DVD 4.7 dual-layer 8.5 GB 
BluRay 25 GB and dual-layer 50 GB
CD 700MB ~ 0.35 $ / 1GB
DVD 4.7GB ~ 0.05 $ / 1GB
Blu-Ray 25 GB ~ 0.02 $ / 1GB

* Plus acquisition costs!

Hard disk (HDD) ~ 0.03 $ / 1GB
Hard drive (SSD) ~ 0.27 $ / 1GB
If wrong ... ---contact---

What is a CD?



A compact diskette is a digital optical data carrier that is scanned with the aid of a laser in order to interpret the data stored on it.
 
 ... technical data CD

What is a DVD?



Essentially, a DVD is also a digital or optical data storage medium that looks similar to a CD, but has a higher storage capacity. Around 10 times the data in relation to the CD. 

... Technical data DVD

What is a Blu-Ray?



Basically the same again, only with more data than a DVD. Is also a digital data storage medium; it looks similar to DVD, but has a higher storage capacity. Around 10 or 5 times as much data as compared to DVD. 

... Technical data Blu-Ray

What is dual layer?



This means that the DVD or Blu-Ray has two layers, so it can hold twice the amount of data. Simply put, two bags fit twice as much. Literally speaking, a laser reads both layers from the inner lane to the outer lane. With DVD-Video, the lower layers are read from the inside out, the upper layer backwards from the outside towards the inner lane.



►►►  How can I eject a DVD or CD from the drive !





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Asked questions on this answer:
  1. Difference Between CD and DVD?
  2. Difference between DVD and CD technically?
Keywords: beginners, what, difference, between, bluray, there, significant, terms, cost, gigabit, advance, just, interface, Questions, Answers, Software




    

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