Friday, May 26, 2006

Weekly readings - 26 May 2006

Data Dictionary for Preservation Metadata.  OCLC/RLG.  May 2006.

This is the final report of the PREMIS Working Group that examines preservation metadata.  The 237 page document includes the PREMIS Data Model and Data Dictionary; examples, methodology, and implementation considerations. The report defines preservation metadata as “the information a repository uses to support the digital preservation process. Specifically, the group looked at metadata supporting the functions of maintaining viability, renderability, understandability, authenticity, and identity in a preservation context.” 


Aftermarket Inks Fading Fast? Hard Copy Supplies Journal Announces Wilhelm’s Surprising Test Results.  PRWeb.  Press Release.  May 25, 2006.

Wilhelm Imaging Research (WIR) 6 that the image permanence of photos printed with aftermarket ink jet cartridges and photo papers is far inferior to that of photos printed with original equipment manufacturer (OEM) ink jet cartridges and photo papers.  The image permanence is an intrinsic part of product quality.  In some cases they see a difference of 70 years of permanence ratings between OEM and aftermarket products.   Making ink jet dye is simple if they ignore permanence.  But it is more difficult to make print products with both high quality and high permanence.   “As a group, the aftermarket inks and premium photo papers in this study had among the lowest WIR display-permanence ratings of any products ever tested by our lab.”  Early print products would degrade in under a year.  Now high quality products can last decades, and some have exceeded the 100 year mark.  Once manufacturers have the image quality right, they can move on to image permanence.  “It is clear that consumers have no idea just how poor the permanence—and thus the overall quality—of these products actually is.” 


User survey reveals ILM reality.  James E. Short.  Infostor.  May 24, 2006.

A recent survey showed that managers in data storage, IT, and records management have widely differing views about information lifecycle management (ILM).  There are multiple definitions of what it is, and if it will create more problems that it will solve.  A majority of those who responded defined ILM as “a policy-based approach to improving records and information management”.  Others saw it as “a technical and systems management issue.”  Part of the concern is that technology is seen as the solution, where others see it as management agreement / control over data across functions departments and people.  Respondents felt that there were more drawbacks than advantages, but also felt that if it is properly defined and implemented, ILM could potentially improve management control over data and reduce storage costs.


Canon Considers Halt to Film Camera Development.  Reuters.  May 25, 2006.,1759,1967639,00.asp?kc=EWRSS03119TX1K0000594

Canon has said that it would consider stopping development of new film cameras as it focuses on digital cameras and because the market is shrinking.  A final decision will be made in the future while they monitor market demand.  Nikon has already stopped producing most of its film cameras;  Konica Minolta has decided to exit the camera and photo film markets because of losses and low demand.


Heritage Microfilm Introduces New Archival and Subscription Program.  PRWeb.  Press Release.  May 25, 2006

Starting in June 2006, Heritage Microfilm will release a new program aimed at bridging the gap between traditional and digital archiving.  The program is built around the ideas of “Preserve,” “Protect” and “Prepare.” Focusing It is designed to bring libraries and historical societies together with newspaper publishers, and has two separate components. One is designed for newspaper organizations and involves the microfilming and digitization of newspaper pages. The other enables libraries to access this content in both microfilm and web-based digital format.  “While microfilming, a stable and analog technology, will never be superseded by digital technologies for long-term preservation, the digital component allows access on a scale never before breached by microfilm."   It will also release a product called DigitalMicrofilm which is billed as an alternative to traditional microfilm subscriptions. Publisher pre-press files, uploaded weekly into the Heritage system, will be delivered through a digital archive website to the subscribing library. This allows librarians and their patrons to access fully-searchable newspaper content previously available on microfilm.


Friday, May 19, 2006

Weekly readings - 19 May 2006

Apago Introduces PDF Appraiser for Creating and Validating PDF/A Documents. Press Release. Business Wire. May 16, 2006.

A software developer has introduced PDF Appraiser, the first program to support both validation and automatic correction of documents in accordance with PDF/A, the new international standard for long-term archiving of digital documents. PDF/A is the much-anticipated standard for long-term archiving of digital documents, and it is expected to become the preferred archival method for governments and industry segments, including corporations, legal, libraries, regulated industries, and others. The vendor is offering PDF/A validation capabilities at no cost. This allows users can easily check documents for PDF/A compliance. The full version is required to correct any problems within the file.

The End User: From France, video for all. Victoria Shannon. International Herald Tribune. May 17, 2006.

The French national audiovisual institute, which has been digitizing its film and audio collection, and has created the "Archives Pour Tous" - archives for all. About 80% of the archive, which contains thousands of hours of radio and television recordings, is on the Internet for free. It contains historic footage of Charles de Gaulle, Marc Chagall, and many others. The site is receiving about five million visits a day. "To us at INA, preserving archives would be pointless if that was to keep them only for a 'happy few.' It is INA's mission to communicate and make this vast wealth of archive images as widely accessible as possible using the latest digital technology, yet preserving them as the nation's heritage for future generations."

IBM researchers extend magnetic tape density. Sharon Fisher. Computerworld. May 16, 2006.

IBM and FujiFilm announced a new technology that could hold as much as 8TB of uncompressed storage in the future. With the new technology, their tape library would be able to hold 48 petabytes. There was no availability date, but it is projected to be a few years away. The intent is to show users that tape has a long life ahead. It is cheaper than disk storage, and provides other options. A 1TB tape cartridge should be available next year.

Micron prepares to sample 8-Mpixel image sensor. Peter Clarke. EE Times. May 18, 2006.

Micron Technology Inc. has made an 8-Mpixel image sensor in a 1/2.5 inch optical format suitable for digital still cameras and mobile phones. The sensor can capture images that can be displayed at 11-inch by 14-inch size and is capable of taking 10 full resolution pictures per second. The sensor can also take 2-Mpixel images at 30 pictures per second for capturing video at 30 frames per second.

Friday, May 12, 2006

Weekly Readings - 12 May 2006

Cultural heritage in danger. heise online. 12 May 2006.

Increasingly, research publications are only available in digital form. But the formats used are becoming outdated. A "memorandum for the preservation of digital information in Germany"
calls on the government, producers of information, hardware and software vendors, libraries, and archives, to pay more attention to the preservation of such data. The memorandum presented recommendations on what needs to be done in general to create a German "long-term archive policy." There needs to be clear selection criteria. Digital archives would have to preserve the content and functionality of this data as completely as possible. Specialized depot systems should be developed to prevent the loss of data through redundancy and mirroring. It also recommends the use of non-proprietary, open, well documented formats to ensure readability over the long-term; wherever possible, such formats should be used to create the data. (

Could the future of storage be all wet? Lucas Mearian. Computerworld. May 12, 2006.

Researchers have found a way to use barium titanium oxide nanowires suspended in water to create digital storage. Experiments show they can hold 12.8 million GB per square centimeter. This is early-stage research which will be interesting to watch. One limitation with today's tape and disk magnetic storage is that a magnetic domain is not stable at molecular levels. "The magnetization will spontaneously flip back and forth because of [temperature] fluctuations."

Sony Delivers HD Quality With Blu-Ray Disc Media. Computer Technology Review. May 9, 2006.
Sony Electronics has begun shipping its 25GB single layer Blu-ray Disc recording media. The dual layer 50GB capacity disc is set to debut in June. The disc features include:
- Scratch Guard -- hard coating that resists scratches, dust and static
- Archival Reliability -- special material design that prevents data and image corruption and deterioration to ensure quality playback
- Stable Writing -- a uniform and precise cover layer that reduces fluctuation as the disc spins
- Temperature Durability -- a high-precision disc structure helps prevent warping during severe changes in temperature and humidity.
Sony will soon offer a wide range of Blu-ray Disc devices.

An ad agency warning: ignore digital at your peril. Francesca Newland. Media Bulletin. 12 May 2006.

“Getting to grips with digital is not about setting up an online division and handing over the briefs, it's about making digital solutions as front of mind….”