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Interactive TV Standards by Anthony Smith-Chaigneau, Steven Morris

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12 DSM-CC and Broadcast File Systems

Almost every MHP and OCAP application will be downloaded to the receiver via the broadcast stream. This chapter takes an in-depth look at how broadcast file systems work, and discusses their strengths, their limitations, and how middleware developers can build the best implementation using this technology. We also look at how application developers can make the most of these file systems in ensuring that applications load as quickly as possible.

For any ITV system, we need some way of loading classes and data files that are needed by the application. This usually means a file system that applications can use. Although many receivers will include some type of return channel, we cannot rely on having a two-way ...

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