logo Sign In

Post #183514

Author
digitalfreaknyc
Parent topic
Blade Runner HDTV (Released)
Link to post in topic
https://originaltrilogy.com/post/id/183514/action/topic#183514
Date created
18-Feb-2006, 10:52 PM
Due to the following quirk in the program (HDTV2DVD) used in making my original release, I'm going to go ahead with releasing my movie-only edition of Blade Runner which will, hopefully, fix any problem anyone might see with the initial release. Note: this is only happening because I'm anal and I saw the problem from the beginning...but it's barely noticeable.
i'll let you all know when I'm done.

Here's a summary of it:

The problem is, it looks like something went wrong with the pulldown removal or something else. Not sure, except to say that the "cadence" of this encode is screwed up with double-frames that don't change from one frame to the next. It's like you get frame 1, frame 2, frame 3, frame 4, frame 4, frame 5. There are repeated frames all over the place. This is very noticeable to the human eye at the start of the fourth vob file, but better yet, try opening the fourth vob in an editor or player and go one frame at a time forward. You will very quickly see the repeated frames occuring at regular intervals. Worse yet, the repeated frames look ever so-slightly different probably due to some sort of changes during the inter-frame compression of MPEG. Also, this cadence is not simply the 3:2 sequence of 24 fps film inserted into a 30 fps interlaced format. It seems something more is happening, but not sure what exactly. My guess is something happened in the workflow from capturing the interlaced 29.97 fps HDTV feed to encoding the MPEG2. There has been some discussion of this on alt.fan.blade-runner and there has also been a comparison to the DC-DVD (with an example of the cadence problem shown as an animated gif) at this page (which probably will be pulled down at some point soon, so take a look ASAP):
http://www.jv-media.com/temp/br-comparison/