What is the “trigger” within the SDMI Portable Device specification?
The “trigger” is an upgrade notification. SDMI Phase 1 portable devices and compatible software are expected to arrive on the market in time for the 1999 holiday season. SDMI Phase 1 software, once installed on a user’s PC, will be capable of receiving a signal indicating that a software upgrade, incorporating new Phase 2 SDMI technology, is available. As a result, a consumer who uses Phase 1 software to play or copy a new Phase 2 musical release will receive notice that the software on their PC needs to be upgraded. The upgrade is not mandatory, but it is necessary in order to play new music that includes Phase 2 SDMI protection. The upgraded software will continue to accept unprotected or open formats.