DVD Vs. CD ECE-E443 Joshua Nguyen. Presentation Agenda Compare DVD and CD disc Overview DVD disc...
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Transcript of DVD Vs. CD ECE-E443 Joshua Nguyen. Presentation Agenda Compare DVD and CD disc Overview DVD disc...
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