1. Name: Abdullah ALghamdi
Blu Ray
Name: Abdullah ALghamdi
ID:
Name: Hossam Tarek
ID:
Instructor:
Abul Bashar

2. outline What is Blu Ray. The Name. Blu-ray Disc better than DVD.
Blu-Ray vs. DVD Capacity.
Blu-Ray vs. DVD Construction.
Comparison of all optical discs.
DIFFERENCE BETWEEN BLU-RAY AND DVD.
DIFFERENCE BETWEEN BLU-RAY AND HD DVD.
Blu-Ray Advantages.
Summary.

3. What is Blu Ray? Blu-Ray is the next generation digital video disc.
A single-layer Blu-ray disc has the same physical size as a DVD.
A double-layer Blu-ray disc can store up to 50 GB.

4. The Name "Blu" stand for the color "blue“.
The "e" in "blue" was intentionally left off.
"ray" stand for "Optical Ray“.

5. Blu-ray Disc better than DVD
Next revolution in optical storage solutions for
High Definition TV/ pre-packaged video
PC data storage/archival
Next generation HD video gaming
Huge capacity
25GB (single layer) / 50GB (double layer)
Compelling interactivity
Best picture and sound quality
bit rates up to 6 times higher than HD broadcast
Lossless compressed 192/24 audio

6. Blu-Ray vs. DVD Capacity

7. Blu-Ray vs. DVD Construction

8. Comparison of all optical discs

9. DIFFERENCE BETWEEN BLU-RAY AND DVD
Storage capacity
25GB (single-layer) 50GB (dual-layer)
4.7GB (single-layer) 8.5GB (dual-layer)
Laser wavelength
405nm (blue laser)
650nm (red laser)
Numerical aperture (NA)
0.85
0.60
Disc diameter Disc thickness
120mm 1.2mm
Protection layer Hard coating
0.1mm Yes
0.6mm No
Track pitch
0.32µm
0.74µm

10. DIFFERENCE BETWEEN BLU-RAY AND HD-DVD
Storage capacity
25GB (single-layer) 50GB (dual-layer)
15GB (single-layer) 30GB (dual-layer)
Laser wavelength
405nm (blue laser)
Numerical aperture (NA)
0.85
0.65
Disc diameter Disc thickness
120mm 1.2mm
Protection layer Hard coating
0.1mm Yes
0.6mm No
Track pitch
0.32µm
0.40µm

11. Blu-Ray Advantages
record high-definition television (HDTV) without any quality loss.
instantly skip to any spot on the disc.
record one program while watching another on the disc.
create play lists.
edit or reorder programs recorded on the disc .
automatically search for an empty space on the disc to avoid recording over a program .
access the Web to download subtitles and other extra features.

12. Thank you