The future... How is it?
Many years ago, till today, the progress of new technologies is non-stop. Every single day we hear of a new device that helps make our every day life easier and more entertaining. Televison started from smaller size with less colours to large, hi tech. colourful, plasma slim screens. Computers started from 'Huge calculators!' to small portable laptops with extremely high speed and great storage. Did anyone imagine, during the days of 500 Mbs. Hard disks, that we would reach to be able to store in 10's and 100's of GEGABYTES?! Ofcourse not. I still remember those days when i used fill my floppy with many, many games! Then came the Cds (Compacts Disks). Then cds where developed into Dvds (Digital Video Disc).
These are all OLD news...
What is new then?!
Media is developing as well with technology in many ways, and everyday, the search of better ways to send messages (through media - Like movies, music, t.v... etc). As we all know, Dvds are essential for media, because Dvds are the newest and main 
technolgy to ditribute video and music files. Well true but not for long. Some of u (especially those of you that have a certain passion in knowing about the newest news of technologies) must have heard about the newest disk storage device or technology (most of you might not), the Blu-ray.
The difference between Blu-ray and Dvds:-
Blu-ray:-
- Encoding------------------ MPEG-2, MPEG-4 AVC (H.264), and VC-1
- Media type---------------- High-density optical disc
- Capacity ------------------ 25 GB (single layer)50 GB (dual layer)
- Read/Write mechanism --- 405 nm laser, 1x@36 Mbit/s & 2x@72 Mbit/s & 4x@144 Mbit/s & 6x@216 Mbit/s & 12x@432 Mbit/s
- Usage --------------------- Data storage,High-definition videoand PlayStation 3 games
Dvds:-
- Encoding-------------------- MPEG-2
- Media type------------------ optical disc
- Capacity -------------------- 4.7 GB (single-sided single-layer), 8.54 GB (single-sided double-layer)
- Read/Write mechanism ----- 650 nm laser,1x@1350 kB/s
- Usage----------------------- Data storage, video, audio, games
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