Form Of Digital Content Research Articles

Editorial: English

Innovator in its editorial proposal, ETD – Educação Temática Digital (Digital Thematic Education) has been launched eight years ago with the whole content in digital form. In the beginning ETD was called Revista On-line da Biblioteca Prof. Joel Martins, and then took such proportions that showed its inclination towards scientific production of Research Groups of UNICAMP Education Faculty in collaboration with several institutions and their respective Research Groups. Besides, independent researchers started to submit papers to be published, since this journal is already known nationwide...

Managing Anti-Circumvention Technology for Digital Content

AbstractAnti-circumvention technologies offer content providers interesting opportunities to protect and distribute various forms of digital content. This work takes an economic approach to the investigation of the relationships between the legal and technological protections of digital content as well as associated managerial implications that impact the overall profitability of content providers. The resulting findings about optimal pricing are interesting and suggest that the price of digital content does not have a simple linear relationship with levels of protection. Thus, content providers should consider such parameters as legal & technological protection levels, consumer disutility due to anti-circumvention technologies, and composition of consumers with different circumventing attitudes when a content provider sets the price in order to optimize its overall profit. We find that an optimal level of protection exists when consumers start to feel significant disutility at the lower levels of technol...

For here or to go? Downloading music on the move with an ultra reliable wireless Internet application

The maturing distributed file sharing technology implemented by Napster has first enabled the dissemination of musical content in digital form, permitting to customers to retrieve stored music files from around the world. In the post-Napster era, the Apple iTunes online music service has hit a record share of 16.7% in the MP3 player market [J. Mc Hugh, Why Wi-Fi is a good business? Wired (2003) 25–26]. This is only the most prominent example of the success of digital music distribution based on packet network technologies. However, to the best of our knowledge, the most noteworthy aspect of the success of digital music distribution is that little about this music delivery technology is really new. To drastically change the nature of this business, we claim that wireless delivery technology must come into the picture. This way, the digital music delivery model will benefit from the integration of the wired Internet with a broad gamut of wireless access technologies, such as WiFi, WPAN and 3G. In this paper we address the problem of the “customer on the move”; we present a wireless Internet application designed to support the distribution of digital music to handheld devices. The main novelty of our software is the ability to provide a seamless music delivery service even in the presence of handoffs within the same radio medium (horizontal) and across media (vertical). Actual measurements from a deployed application show that our system can deliver a smooth, ultra reliable, low latency music service to mobile users.

Security of digital entertainment content from creation to consumption

With the advent of digital technologies, many new market opportunities have emerged for content owners, content distributors, and consumer electronics/information technology industries. An essential requirement for developing a thriving marketplace is the protection of copyrighted content in digital form. There are four major stages in the delivery of content to the consumer: (1) capturing on digital media, (2) packaging, (3) distribution to home networks, and (4) transfer to the final audio/visual device within the home network. Entertainment content is of particular importance as it will be in high demand for many years to come. If an end-to-end security cannot be provided in a digital market, there would be no incentive for content creation. Lack of new supplies would result in detrimental effects for all the industries involved in the delivery chain. In this paper, we present the primary means of securing the entertainment content from creation to consumption in an attempt to understand the overall complexity of the problem.

XML and relational databases: uses and opportunities for libraries

Relational Database Management Systems (RDBMS) have a proven track record for storing and managing many different forms of digital content, and new strategies have been defined to provide RDBMS‐based solutions for XML. Some relational databases now offer special mechanisms to accommodate XML while several technologies have emerged to facilitate the use of XML representations of data housed within an RDBMS. In addition to presenting challenges and opportunities to RDBMS developers, XML and XML‐enabled technologies may find new application for libraries by combining RDBMS concepts with Web‐based services.

Important legal developments regarding protection of copyrighted content against unauthorized copying

The ability to distribute copyrighted content in digital form through high capacity prerecorded discs and Internet-enabled transmissions has brought new challenges to the protection of such content from unauthorized use and copying. Legal and technical mechanisms to address these challenges are still very new, but important developments have occurred in the past few years. Because all of this is new, there are two reasons why researchers and developers of digital technologies need to understand the developments: first, to ensure that research and development is not conducted in a manner that is contrary to the new legal requirements; and second, to stimulate comments concerning legal developments that may have unintended consequences beyond the areas that are intended to be regulated. The purpose of this article is to provide an outline of certain important legal developments so that participants in the research and development field can be alerted to their existence and make appropriate inquiries and comments.

MPEG-4: Context and objectives

Abstract The MPEG-4 audiovisual representation standard currently under development addresses the needs and requirements, arising from the increasing availability of audiovisual content in digital form. It goes beyond digitizing linear audio and video, specifying a description of digital material in the form of ‘objects’, that can be flexibly and interactively used and re-used. This paper describes the developments that make MPEG-4 necessary (‘Why’), what MPEG-4 does to address the new needs (‘What’), and gives an overview of how the standard is developed (‘How’).