Comments

I do believe that the writer may have missed one very special criteria that has effected the HDMI interface and its roll out. I belong to a performance ranking company where HDMI products, including cables, has been at the top of the list. As I would agree that HDMI cables really offer very little difference in picture quality there is a substantial difference in reliability. The operational integrity of these products has been the biggest issue of all. We have tested many different cable products only to find that they are all over the map. There are differences. These tests require bandwidth, amplitude, timing, communication integrity, interpair skew, intrapair skew, and supply voltage performance. Any one or a mix of any of these parameters can result in an HDMI failure. Failures can occur upon start up, during operation, or just over time. We have found the headroom over and above the minimums are continually challenged. If the dynamics over and above the minimums are not satisfied for the entire system(source, sinks and cables) there can be problems. As the length increases so does the need for even better integrity. These are the issues that have been on the for front of all HDMI issues. There is much to know and understand. Even installations can be an issues if one does not route these products in an orderly fashion. That is not to even mention the integrity issues when it comes to high resolution demands. Like I said, there is much to know. You are more than welcome to visit the Digital Performance Ranking web site dplrating.org for more information or contact me directly by email.