5. RecordedVideo
Disc – 1926 – Phonovision
Film – 1930s - Kinescope
Tape – 1951 – Ampex
Videocassettes (tape) – 1971 – Sony
Videodiscs – 1964 (RCA), 1978 (Pioneer)
CD (Video CD, CD-G, CD-ROM/RW)
DVD / Blu-ray / HD DVD
File based
7. CapacitanceElectronicDisc(CED)
RCA selectvision
(1964) 1981
Mechanical
30 cm – 11.81 inches
Composite video
Conductive vinyl platter
PVC blended with carbon to allow the disc to
be conductive
Layer of silicone applied to the disc as A
lubricant
Handled in A caddy
http://en.wikipedia.org/wiki/Capacitance_Electronic_Disc
www.videointerchange.com
8. LaserDisc/DiscoVision
1978
Optical – laser
30 cm – 11.81 inches
Two single-sided aluminum discs
layered in plastic
Looks like a vinyl record or very large DVD
Used interactively under computer control
Wikipedia
http://en.wikipedia.org/wiki/Laser_disc-
www.laserdiscarchive.co.uk
10. CD-ROM
1998
650Mbs to 900Mbs
12 cm
Special Formats
Video CD
CD-G
www.arsenmusic.com
11. EarlyDigital Videofiletypes
Motion JPEG
IEEE
1989
QuickTime
Apple
June 1991
Video for Windows
Microsoft
Video for Windows
November 1992
13. DVD
Digital Versatile Disk
1995
12 cm
4Gbs to 18Gbs (Double sided, double layer)
First DVD movie – “The Assassin” Japan
obamaeffectmovie.com
14. Blu-ray/ HD DVD
2006
12 cm
25Gbs to 128 Gbs
First Blu-Ray film “Fifty First Dates”
harddrivedvdrecordertech.co.uk
www.gadgetreview.com
18. Streamed
Embedded from URL
File is not “on” webpage
Points to a file in another directory or on a
another site
Large file sizes
Requires high bandwidth for playback
19. DigitalCompression
Eliminates redundant or unnecessary bits
Reduces the size of movies so that
they can be stored, transmitted, and
played back effectively
Adobe - About video and audio encoding and compression.
http://help.adobe.com/en_US/mediaencoder/cs/using/WSb8e30982e628fbecc0e59e6131255b4dd2-8000.html
20. FileEncoding
Uses various compression schemes to
compress the information.
Each encoder has a corresponding
decoder that decompresses and
interprets the data for playback.
Adobe - About video and audio encoding and compression.
http://help.adobe.com/en_US/mediaencoder/cs/using/WSb8e30982e628fbecc0e59e6131255b4dd2-8000.html
21. Videobreakthroughs
IEEE 1394 Firewire standard – 1986
Digital video encoding – 1991
DV Camcorders - 1995
Digital video editing - 1998