an interactive dvd browser in accordance with the dvd specification for read - only discs is capable of accessing remotely located data over the internet through a technique which contemplates new navigation commands as well as the embedding of html page addresses in navigation commands in place of data stream identifiers currently unused by the dvd specification . a navigation command is supplied to the interactive dvd browser indicating the browser should change data sources . the navigation command includes a network protocol address , in the form of html page address , as well as a local address of the user &# 39 ; s default internet browser . a second command specifies a predetermined period of time in which the browser should wait until the internet browser establishes a hyperlink to the remote source of presentation data specified by the network page address . if the data resident at the specified address is suitable for presentation by the dvd browser , the data is presented , otherwise , the dvd browser will wait while the network browser presents non - dvd compliant data . the technique enables software updates , on - line registration and other dynamic data activities to occur with a legacy dvd browser while still complying with the dvd specification for read - only disc .