1. DVD Vs. CD ECE-E443 Joshua Nguyen

2. Presentation Agenda Compare DVD and CD disc Overview DVD disc format Compare DVD and CD schematic DVD vs. CD vs. Blue-ray disc

3. DVD & CD Comparison Chart SPECIFICATIONDVD-ROMCD-ROM Disc diameter120 mm Track distance0.74 microns1.6 microns Pit length0.4 microns.834 microns Pit width0.3 microns0.6 microns Pit depth0.16 microns0.11microns Laser wavelength635-650 nm780-790 nm Speed (scanning)3.49 m/s1.2-1.4 m/s Maximum user data rate (bytes/sec) 11.08 M1.41M Average user data rate 4.7 Mbps3.7 Mbps Capacity1.4 - 8.0 GB/side640 - 700 MB /side

4. DVD Disc Configuration CONFIGURATION SINGLE SIDE / SINGLE LAYER SINGLE SIDE / DUAL LAYER DUAL SIDE / SINGLE LAYER DUAL SIDE / DUAL LAYER COMMON NAME DVD-5DVD-9DVD-10DVD-18 STORAGE CAPACITY (GB, billions of bytes) 4.78.549.417.08

5. DVD Advantages DVD picture quality is better, and many of DVDs have Dolby Digital or DTS sound, you can enjoy High Fidelity audio in a movie theater. Many DVD movies have an on-screen index, so you can select the part of the movie you want to view. DVD players are compatible with audio CDs. Some DVD movies have screen format for an TV, so you can choose which way you want to watch the movie. DVD movies may have several soundtracks on them, and they may provide subtitles in different languages.

6. Sony CD Player Schematic Diagram

7. Typical DVD Player

8. Overall Block Diagram of Sony DVD Player

9. DVD/CD RF AMP & DIGITAL SERVO

10. ARP/ System Controller

11. AV Decoder

12. Video Buffer

13. Audio DSP

14. D/A Converter

15. DVD Vs. CD Vs. Blu-ray

16. Question ?

17. Reference http://stream.uen.org/medsol/dvd/pages/dvd_format_definition.html http://eserviceinfo.com http://electronics.howstuffworks.com/dvd.htm