@sagexsdx, HDi was a pro for HD-DVD, not a con as you portray.
The set of code used for Blu-ray disc coding was actually more difficult to utilize, had fewer capabilities, was sometimes unstable, and was not as supported or uniform as HDi. Overall, HDi was the better coding system for interactive features on either of the HD disc formats. This was mostly because Microsoft put backing behind HDi to develop it into the more robust coding system - allowing for better overall experiences with HD-DVD versions of movies rather than Blu-Ray versions.
I don't know about how BD-Java is currently, but as you can tell, the API specifications and the hardware specifications are still evolving and have yet to catch HD-DVD's level of feature support that was present before the end of the format. (This difference between the two formats was particularly apparent in the release of 300 on both formats with major deficiencies in the Blu-Ray version because of BD-Java and the Blu-Ray hardware profile.)
Microsoft and Toshiba have reported that HDi is able to be used for media on not just optical discs, but can be used with other media as well such as that delivered to the consumer via the internet. This could be part of the reason that Microsoft would not want to bring Blu-Ray to the 360 - they could instead build-in interactive features into their digital downloads using HDi to provide more incentive to rent movies or buy shows via Xbox Live Marketplace.
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HDi was a pro for HD-DVD, not a con as you portray.
The set of code used for Blu-ray disc coding was actually more difficult to utilize, had fewer capabilities, was sometimes unstable, and was not as supported or uniform as HDi. Overall, HDi was the better coding system for interactive features on either of the HD disc formats. This was mostly because Microsoft put backing behind HDi to develop it into the more robust coding system - allowing for better overall experiences with HD-DVD versions of movies rather than Blu-Ray versions.
I don't know about how BD-Java is currently, but as you can tell, the API specifications and the hardware specifications are still evolving and have yet to catch HD-DVD's level of feature support that was present before the end of the format. (This difference between the two formats was particularly apparent in the release of 300 on both formats with major deficiencies in the Blu-Ray version because of BD-Java and the Blu-Ray hardware profile.)
Microsoft and Toshiba have reported that HDi is able to be used for media on not just optical discs, but can be used with other media as well such as that delivered to the consumer via the internet. This could be part of the reason that Microsoft would not want to bring Blu-Ray to the 360 - they could instead build-in interactive features into their digital downloads using HDi to provide more incentive to rent movies or buy shows via Xbox Live Marketplace.