Presentation on theme: "DVD — Much More than Just Another Movie Format ETT 555 Media Design: Multimedia With special thanks to Ken Reed, formerly with Pioneer New Media Technologies,"— Presentation transcript:
DVD — Much More than Just Another Movie Format ETT 555 Media Design: Multimedia With special thanks to Ken Reed, formerly with Pioneer New Media Technologies, Inc.
What is DVD? l A laser optical technology ~ CD l Large (massive?) storage capacity » Very high quality video & audio » Text and images l What’s in a name?? » Digital Videodisc » Digital Versatile Disc » DVD
Same diameter & thickness as a CD 120mm (4.7”) 1.2mm DVD Physical Characteristics
Compact Disc DVD 0.6mm 1.2mm Can be double-sided DVD Physical Characteristics & Dual Layer!
To play layer two, laser is focused on second layer through the first one Disc Substrate Transparent Bonding Layer Partially Reflective Metal Layer Fully Reflective Metal Layer How Dual Layering Works
The Latest DVD Technologies l Dual Layer PC Recorders » Just coming along » Pricing & compatibility? » Media availability and cost? l Blue Laser Technology » Multiple, incompatible formats! » Shorter wavelength = greater density » “Blu-ray” = 23-27GB, single layer » HD-DVD = 15GB/30GB, single/dual spec
DVD Concepts l l DVD Video l l DVD-ROM l l DVD Media l DVD-RW l DVD+RW l DVD-RAM l l DVD-Audio
DVD Hardware l DVD Video » Portable & set top video players » Desktop & notebook computers l DVD-ROM » Computers only » Data discs l DVD-recorder / “burner” » Computer » Stand alone (example)
DVD Media Types l l DVD Media » » Parallels CDs » » R = (Recordable - Once) » » RW = (Re-writable) l l DVD Media » » Parallels CDs » » R = (Recordable - Once) » » RW = (Re-writable)
DVD Media Standards l DVD-RW » First to market » Pioneer, Apple, Compaq l DVD+RW » Claims best defect management » HP,Sony,Thomson,Dell,Phillips,Yamaha
DVD Media Standards l DVD-RAM » Disc in a case, originally Now, with or without » Typically, not for regular players » Re-writable 100K x vs 1K for RW » Combo DVD-RAM + DVD± drives » Matsushita, Gateway
DVD Applications l DVD-Data (ROM) » Ideal for backups? l DVD-Audio (Massive Storage) » ca. 7 hrs per side / layer @ CD quality » Higher quality possible » Still rare, but coming l DVD Video (Interactive Video) » Movies with “extras”
DVD-Video Features l Video: High quality, High capacity » Full motion, full screen, MPEG2 » 2+ hours (1 side, 1 layer) l Audio: High quality, High capacity » Up to 8 audio streams » Multiple languages, audiences, grade levels, etc. » Cf. laserdiscs
DVD-Video Features Sub-Picture Streams l Up to 32 sub-picture streams l Used for sub-titles or closed-captions l Graphic overlays to highlight video l Text annotations to video content l On-screen buttons
DVD-Video Features Multiple Angles l Up to 9 parallel video paths l Provide alternate views of technical procedures or science experiments l Switch to different video scenarios based on user input l Strong potential for visual learning
DVD-Video Features Integrated Interactive Capabilities l Navigation & branching l On-screen buttons for user (function) interface l Non-linear playback of multimedia content l Interactive switching of audio, angles, sub-pictures, etc.
l Home entertainment DVD players » Lack durability for interactivity » Lack easy-use control l Computer DVD drives lack versatility » On screen remote control » Less universal (notebook vs desktop) l Industrial grade players are the ideal » Parallel laserdisc players DVD Hardware for Education
l Highest Level of Flexibility » No need for computer » Interactivity in the menus of the DVD via computer control (cf. laserdiscs) » System remote provides simple & easy Menu Navigation Benefits of an Industrial Player
l User Interface Options: » Standard Remote » Mouse / Trackball » Touchscreen » Barcode » RS-232 Industrial Players
l Best Buy, Bose l Sears, K-Mart l KIA, Chuckie Cheese l Multiple Screen / Multiple Player Installations: NCAA Hall of Fame Texas Museum of History Real Life Applications
l Video Blackboard » Annotate video » Excellent for Instruction l Internal Memory (non-volatile) » Save Text or Graphics generated by Video Blackboard » Save “clips” in non-linear play sequence Special Features of DVD-V7400
l DVD Bundles (sold out) » DVD-V7400 Player » Barcode Reader » IMAX Discs w/ Barcoded Workbooks “Africa the Serengeti” “Tropical Rainforests” “Antartica” “Whales” l Barcode Creation » DVD Bar’N Coder (Windows) Pioneer Education Products
Prepare multimedia content l Create digital video files on a robust computer l Create audio tracks as needed l Create graphics files for Menus, Subtitles, etc. Proceed to authoring step Creating your own DVD!!
l Authoring Systems range from $00 to $50K » Sonic Solutions MyDVD, DVDit » Apple iDVD, DVD Studio Pro » ULead DVD MovieFactory » Be wary of claims! l Prices down, usability up Authoring Tools
Creating your own DVD!! Authoring l Takes up to 4 Data Streams and creates one “interleaved” stream » Encoded MPEG2 Video (DVD specs) » Encoded Digital Audio » Graphics » “Programming” Links buttons to media l Test and revise (on hard drive)
Creating your own DVD!! l Process the application » Convert to DVD spec files » Burn files onto a DVD disc using DVD burner » Onto a CD-R also possible!! Most practical for schools? l (Send to Replicator for quantity) » Not from basic burners
l Professional Creator / Burner » e.g., Pioneer PVR-LX1 External burner Street Price ~ $4000 » Discs can be sent to replicators as Masters Creating the DVD Disc
l Low-end DVD Burner » Internal Drives » Street price: $50-500 » Various brands / formats » Discs cannot be sent to replicators as Masters Creating the DVD Disc