Are you talking about the specification standard for the definition for "HD" or are you asking for an approximate definition of what HD should be at a minimum to be, in good faith, a reasonable effort to have been produced in high definition?Enigmo wrote:Yeah, I know what you mean. Blu-Ray is just a disk format. But is your point that if it's just an upscaling job, then this means it is not HD? If so, what does 'HD' actually mean? And I don't ask that to support the idea that upscaling makes it HD; I just don't know the actual meaning of 'HD'.
Typically, 720i is the minimum for "HD" with no reference to actual bitrate or content.