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Downloading

Downloading. User must wait for the entire file to transfer before viewing any part of it Seeking within the file almost immediate User gets the entire file, and can use it in any way they choose Quality dependent on how long the user is willing to wait for the file to download. Streaming.

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Downloading

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  1. Downloading • User must wait for the entire file to transfer before viewing any part of it • Seeking within the file almost immediate • User gets the entire file, and can use it in any way they choose • Quality dependent on how long the user is willing to wait for the file to download

  2. Streaming • File transferred to user in small parts, can view once the first part has been delivered • Seeking within the file requires communication with the streaming server and a delay while a new chunk of the file delivered • User does not receive a complete re-usable copy of the file • Quality dependent on the network bandwidth between the user and the streaming server

  3. Streaming media players • QuickTime • Free version limited in codecs it can play back • No version for Unix/Linux • RealPlayer • Free version limited in codecs it can play back • Free version hidden on download site • Windows Media Player • Free version limited in codecs it can play back • No version for Unix/Linux • Latest version not released for Mac

  4. Digital audio and video at IU • DLP • UITS • DMNS • DMS • TLTC • Radio/TV

  5. Can handle these formats: VHS DVD Laserdisc CD Cassette Open reel tape Digitization and consulting services as part of the Digital Media and Image Center (DMIC) Contact: Kara Alexander, Digital Media Specialist, kalexand@indiana.edu Digital Library Program (DLP)

  6. Digital Media Network Services (DMNS) • Division of UITS • Hosts IU streaming media servers • Service is free for IU academic and administrative units • Can stream Real, QuickTime, and Windows Media content • http://www.indiana.edu/~video/ • video@indiana.edu

  7. Digital Media Services (DMS) • Digitization and derivative creation services for still images, audio, and video • System-wide service, based in Indianapolis • For-fee service • http://dms.iu.edu/ • iudms@iu.edu

  8. Teaching and Learning Technologies Centers (TLTC) • “Provides consulting and development for integrating technologies into university teaching and learning.” • http://www.indiana.edu/~tltl/ • tltc@indiana.edu

  9. Radio/TV • Audio and video digitization in support of public radio and public television production services • Can do digitization for campus units for a fee • Contact: Scott Carmichael, sacarmic@indiana.edu

  10. Video E-Reserves Project • Pilot tests performed Spring 2004 (2 classes) and Fall 2004 (5 classes) • Pilots covered VHS and DVD • Digitization and transcoding performed in DMIC • 2 videos in Fall 2004 sent to DMS for comparison

  11. Video E-Reserves Workflow MJPEG-A UITS Streaming Servers QuickTime MPEG4 640x480 RealVideo 640x480 RealVideo 320x240 QuickTime MPEG4 320x240 RealVideo 240x180 QuickTime MPEG4 240x180 RealVideo 160x120 QuickTime MPEG4 160x120 MDSS

  12. Video E-Reserves Access IU Libraries E-Reserves site for course listing available titles Dynamically generated Web page on DLP server listing available versions of video UITS Streaming Servers

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