AV Technology - April 2009 - (Page 39) traditional data storage from AV media storage.” Frederick also notes that the challenge of storing media files is compounded by their size. “Professional AV content tends to be very large, frequently multiple tens of gigabytes per file,” he says. “The size itself creates problems with the ability to get it in and out of storage quickly and usably.” Josef Marc, VP of customer engineering for Front Porch Digital, says there is another critical difference between storage of data and AV. “Data storage is primarily driven by financial industries where they have to keep a lot of transactions,” says Marc. “This type of IT storage is not normally optimized to keep things together; it will break things up randomly for storage efficiency, but that isn’t a problem in banking. It is in video.” Marc also notes that the temporal content of video and other types of media makes it necessary to keep everything in the file together, which can make AV storage a bit trickier than data. Marc cites LTO tape (linear tape-open), which was developed for storage of standard data files, as a good option for long-term AV storage, but has a caveat. “You need to be careful about how the media are fed to LTO,” says Marc. “Data files are generally no problem, and if the tape needs to stop and back up and go again, that’s ok. But if you do that a lot, you get a shoeshine effect on the tape. LTO is great for copying videotapes for storage, but if they are not fed to the LTO just right, the LTO will keep backing up and will cause a shoeshine effect that wears out the tape more quickly.” Some users find LTO a convenient method of storing AV content, and Front Porch Digital uses it extensively. Marc says, “Hard drive costs are coming down in terms of cost per bit, but the power to keep them on is an issue, so tape storage is still of value —especially with energy costs http://www.wohler.com http://www.wohler.com
Table of Contents Feed for the Digital Edition of AV Technology - April 2009 AV Technology - April 2009 Contents Perspective: Lost in a Cloud Precedent Corporate: Seven Rules of Thumb for the AV Technology Manager Government: Collaboration Will Help Reshape Federal Agencies Education: Moving Day Managing Digital AV Content Audiovisual Untethered Irvine’s Mobile Command & Control Vehicle AV with a View Product Forum: Revolabs Fusion Wireless Mic System Product Spotlight: Network Test Equipment Tech Horizons: Ever Thinner New Products Ad Index AV MO: Power Consumption in AV Devices AV Technology - April 2009 AV Technology - April 2009 - AV Technology - April 2009 (Page Cover1) AV Technology - April 2009 - AV Technology - April 2009 (Page Cover2) AV Technology - April 2009 - Contents (Page 3) AV Technology - April 2009 - Contents (Page 4) AV Technology - April 2009 - Contents (Page 5) AV Technology - April 2009 - Perspective: Lost in a Cloud (Page 6) AV Technology - April 2009 - Perspective: Lost in a Cloud (Page 7) AV Technology - April 2009 - Precedent (Page 8) AV Technology - April 2009 - Precedent (Page 9) AV Technology - April 2009 - Precedent (Page 10) AV Technology - April 2009 - Precedent (Page 11) AV Technology - April 2009 - Precedent (Page 12) AV Technology - April 2009 - Precedent (Page 13) AV Technology - April 2009 - Precedent (Page 14) AV Technology - April 2009 - Precedent (Page 15) AV Technology - April 2009 - Precedent (Page 16) AV Technology - April 2009 - Precedent (Page 17) AV Technology - April 2009 - Precedent (Page 18) AV Technology - April 2009 - Precedent (Page 19) AV Technology - April 2009 - Precedent (Page 20) AV Technology - April 2009 - Precedent (Page 21) AV Technology - April 2009 - Precedent (Page 22) AV Technology - April 2009 - Precedent (Page 23) AV Technology - April 2009 - Precedent (Page 24) AV Technology - April 2009 - Precedent (Page 25) AV Technology - April 2009 - Precedent (Page 26) AV Technology - April 2009 - Precedent (Page 27) AV Technology - April 2009 - Precedent (Page 28) AV Technology - April 2009 - Precedent (Page 29) AV Technology - April 2009 - Corporate: Seven Rules of Thumb for the AV Technology Manager (Page 30) AV Technology - April 2009 - Corporate: Seven Rules of Thumb for the AV Technology Manager (Page 31) AV Technology - April 2009 - Government: Collaboration Will Help Reshape Federal Agencies (Page 32) AV Technology - April 2009 - Government: Collaboration Will Help Reshape Federal Agencies (Page 33) AV Technology - April 2009 - Education: Moving Day (Page 34) AV Technology - April 2009 - Education: Moving Day (Page 35) AV Technology - April 2009 - Education: Moving Day (Page 36) AV Technology - April 2009 - Managing Digital AV Content (Page 37) AV Technology - April 2009 - Managing Digital AV Content (Page 38) AV Technology - April 2009 - Managing Digital AV Content (Page 39) AV Technology - April 2009 - Managing Digital AV Content (Page 40) AV Technology - April 2009 - Managing Digital AV Content (Page 41) AV Technology - April 2009 - Audiovisual Untethered (Page 42) AV Technology - April 2009 - Audiovisual Untethered (Page 43) AV Technology - April 2009 - Audiovisual Untethered (Page 44) AV Technology - April 2009 - Audiovisual Untethered (Page 45) AV Technology - April 2009 - Audiovisual Untethered (Page 46) AV Technology - April 2009 - Audiovisual Untethered (Page 47) AV Technology - April 2009 - Irvine’s Mobile Command & Control Vehicle (Page 48) AV Technology - April 2009 - Irvine’s Mobile Command & Control Vehicle (Page 49) AV Technology - April 2009 - AV with a View (Page 50) AV Technology - April 2009 - AV with a View (Page 51) AV Technology - April 2009 - AV with a View (Page 52) AV Technology - April 2009 - AV with a View (Page 53) AV Technology - April 2009 - Product Forum: Revolabs Fusion Wireless Mic System (Page 54) AV Technology - April 2009 - Product Spotlight: Network Test Equipment (Page 55) AV Technology - April 2009 - Tech Horizons: Ever Thinner (Page 56) AV Technology - April 2009 - Tech Horizons: Ever Thinner (Page 57) AV Technology - April 2009 - New Products (Page 58) AV Technology - April 2009 - New Products (Page 59) AV Technology - April 2009 - New Products (Page 60) AV Technology - April 2009 - New Products (Page 61) AV Technology - April 2009 - New Products (Page 62) AV Technology - April 2009 - New Products (Page 63) AV Technology - April 2009 - New Products (Page 64) AV Technology - April 2009 - Ad Index (Page 65) AV Technology - April 2009 - AV MO: Power Consumption in AV Devices (Page 66) AV Technology - April 2009 - AV MO: Power Consumption in AV Devices (Page Cover3) AV Technology - April 2009 - AV MO: Power Consumption in AV Devices (Page Cover4)
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