| 摘要 |
An extended DVD system includes a DVD player 2 capable of playing disks 6 with extended application capabilities. On inserting a disk, a DVD video virtual machine (VM) 20 is started from a platform-independent execution environment (18), which reads the video content from the disk and provides an audiovisual display based on that content. The DVD video VM 20 determines when specified events occur and calls back to the platform-independent execution environment 18, which causes commands to be executed such as a separate application stored on the DVD disk 6.
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