Brian L
Senior HTF Member
- Joined
- Jul 8, 1998
- Messages
- 3,291
Curious if anyone has noticed any odd behavior with this disc. At the outset, I will say that I have a Pioneer 45A, which is known to have various problems with its de-interlacer and 3:2 Pulldown detection.
What I think I am seeing is called combing, and it is NOT subtle. What is odd is that I have watched hundreds of discs with this player, and this is the first time I have seen this, and thus far only with this one particular disc.
While watching this disc, I see moments where certain sections of certain scenes show huge horizontal line structure, and then it goes away. This happens throughout the entire disc.
I wish I could post a screen shot, but if you have this player, and have this disc, you will see it (assuming your player and mine have the same software, and Pure Cinema is turned on).
Right at the start of chapter 2, the dad walks through an open doorway....his shirt will suddenly have horizontal lines across it. In Chapter 5, there are some poodles that jump around...there are all sorts of horizontal lines that appear, and then clear when they stop moving.
What I have discovered is that the problem seems to relate to 3:2 Pull Down (Pure Cinema in Pioneer speak). If I turn off Pure Cinema, that problem goes away.
On the 45A there is a flag that appears when you turn on the disc display (where you see elapsed time, sound format, etc.). It sets a # in the display if the disc is flagged as Film based.
On this disc, that flag is constantly, erratically turning on and off. And what I have noticed is that when I see the combing (assuming that that is what I am seeing), it turns off.
I checked a few other titles, and found that in some cases (Hunchback of Notre Dame II) the flag does toggle, but in a somewhat consistent pattern, and I never see combing on that disc. For comparison, I also popped in Apollo 13 and found that the flag was constant which is what I would expect since it is film based (the picture looked pretty good too).
I know the Secrets write up said that this player was a flag reader, and that this was NOT a good thing with DVDs that were improperly flagged.
I suspect I have found a disc that is seriously screwed up with regard to flagging, and it really shows this shortcoming of the player.
I would be curious if anyone with any other progressive player (Pioneer in particular) could take a look, and perhaps try it with 3:2 pulldown on and off.
Brian
What I think I am seeing is called combing, and it is NOT subtle. What is odd is that I have watched hundreds of discs with this player, and this is the first time I have seen this, and thus far only with this one particular disc.
While watching this disc, I see moments where certain sections of certain scenes show huge horizontal line structure, and then it goes away. This happens throughout the entire disc.
I wish I could post a screen shot, but if you have this player, and have this disc, you will see it (assuming your player and mine have the same software, and Pure Cinema is turned on).
Right at the start of chapter 2, the dad walks through an open doorway....his shirt will suddenly have horizontal lines across it. In Chapter 5, there are some poodles that jump around...there are all sorts of horizontal lines that appear, and then clear when they stop moving.
What I have discovered is that the problem seems to relate to 3:2 Pull Down (Pure Cinema in Pioneer speak). If I turn off Pure Cinema, that problem goes away.
On the 45A there is a flag that appears when you turn on the disc display (where you see elapsed time, sound format, etc.). It sets a # in the display if the disc is flagged as Film based.
On this disc, that flag is constantly, erratically turning on and off. And what I have noticed is that when I see the combing (assuming that that is what I am seeing), it turns off.
I checked a few other titles, and found that in some cases (Hunchback of Notre Dame II) the flag does toggle, but in a somewhat consistent pattern, and I never see combing on that disc. For comparison, I also popped in Apollo 13 and found that the flag was constant which is what I would expect since it is film based (the picture looked pretty good too).
I know the Secrets write up said that this player was a flag reader, and that this was NOT a good thing with DVDs that were improperly flagged.
I suspect I have found a disc that is seriously screwed up with regard to flagging, and it really shows this shortcoming of the player.
I would be curious if anyone with any other progressive player (Pioneer in particular) could take a look, and perhaps try it with 3:2 pulldown on and off.
Brian
