(adsbygoogle = window.adsbygoogle || []).push({}); If i download a blue-ray movie, then play it from my external hard-drive on my High Def. tv, would it be the same as an actual blueray disk?

If you download it in it's full quality, then I assume so, however don't take my word for it, I'm not an expert at Blu-Ray movies.

If you download all 18GB of the film and play it in aa high res format then yes.