DVD Vs. CDECE-E443

Joshua Nguyen

Presentation Agenda

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

DVD & CD Comparison ChartSPECIFICATIO

NDVD-ROM CD-ROM

Disc diameter 120 mm 120 mm

Track distance 0.74 microns 1.6 microns

Pit length 0.4 microns .834 microns

Pit width 0.3 microns 0.6 microns

Pit depth 0.16 microns 0.11microns

Laser wavelength

635-650 nm 780-790 nm

Speed (scanning)

3.49 m/s 1.2-1.4 m/s

Maximum user data rate (bytes/sec)

11.08 M 1.41M

Average user data rate

4.7 Mbps 3.7 Mbps

Capacity 1.4 - 8.0 GB/side

640 - 700 MB /side

DVD Disc Configuration

CONFIGURATION

SINGLE SIDE / SINGLE LAYER

SINGLE SIDE / DUAL LAYER

DUAL SIDE / SINGLE LAYER

DUAL SIDE / DUAL LAYER

COMMON NAME

DVD-5 DVD-9 DVD-10 DVD-18

STORAGE CAPACITY

(GB, billions of bytes)

4.7 8.54 9.4 17.08

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.

Sony CD Player Schematic Diagram

Typical DVD Player

Overall Block Diagram of Sony DVD Player

DVD/CD RF AMP & DIGITAL SERVO

ARP/ System Controller

AV Decoder

Video Buffer

Audio DSP

D/A Converter

DVD Vs. CD Vs. Blu-ray

Question ?

Reference

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