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differences between Preview and disc
BillHansen [Avatar]
Senior Member Joined: Jan 03, 2012 12:43 Messages: 178 Offline
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Second try. Posted this yesterday but apparently it didn't make it to the forum.

Shot several 1 to 3 minute clips of my dogs yesterday afternoon, cloudy skies but adequate light. The appearance of the immediate pre-burn Preview of my videos is far different from the appearance of the videos once they're burned to disc, and I don't know what I'm doing wrong - or whether it's just something inherent in PD which I will have to learn to live with. I hope and assume that it's my shortcoming, not PD.

Shooting in 60i, 24Mbps, 30 fps - edits in PD include very slight color and brightness adjustments, slight increase in sharpness. Producing in AVCHD, 1080X1920 60P 28Mbps (not the difference - shot in 60i, first produced in 60P - but producing in 60i yielded the same results). After clicking Create Disc, viewing the Preview (not the Preview in the edit window - the button just to the right of the "Start Burning" button) the Preview looks exactly like I want it to. I was very pleased! - minimal video noise, reasonable sharpness (the camera is limited there), acceptable tonal range and color for the single-sensor prosumer level camera. After burning to disc, viewing the resulting video (playing disc) shows quite a lot of video noise, excessive contrast, and serious over-sharpening. It's really ugly!

The same thing happens when I produce the video in AVCHD 1080X1920 60i 24Mbps - the Preview just before burning looks really good to me, but the disc playback is ugly.

Adding some video denoise doesn't seem to be the answer. That just smears out fine details without removing enough video noise.

I need to know how to avoid this. I don't know whether I'm using an incorrect producing format, whether I'm using the wrong burning format, or doing something else wrong.

Thanks for whatever help -

Bill Hansen Bill Hansen
BillHansen [Avatar]
Senior Member Joined: Jan 03, 2012 12:43 Messages: 178 Offline
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]By request, here is a screen shot of the adjustments I made to MTS files when producing to AVCHD and burning to DVD. Also attached is an unedited MTS file. I'll try to attach the edited form of the file also.

Bill
 Filename
Ariel Merlin Outside 2 7 12.pds
[Disk]
 Description
same file, edited with the adjustments in screen shot
 Filesize
176 Kbytes
 Downloaded:
370 time(s)
[Thumb - screen shot PD10 edits.jpg]
 Filename
screen shot PD10 edits.jpg
[Disk]
 Description
screen shot of edits made to this file
 Filesize
41 Kbytes
 Downloaded:
120 time(s)
 Filename
00315.MTS
[Disk]
 Description
unedited MTS file
 Filesize
75306 Kbytes
 Downloaded:
185 time(s)
Bill Hansen
Cap'n Kevin
Senior Contributor Location: Chebeague Island, Maine Joined: Dec 26, 2008 20:22 Messages: 2011 Offline
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Bill,

We are making headway! Thanks for attaching the files. The sample video mts file will help a lot. And attaching the edited result will help us see what you are seeing.

Thank you very much for you patience! We will figure it out.
Kevin

This message was edited 1 time. Last update was at Feb 08. 2012 17:36


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James1
Senior Contributor Location: Surrey, B.C., Canada Joined: Jun 10, 2010 16:20 Messages: 1783 Offline
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Hi Bill,
I downloaded your 75MB video Nice dog....could have got the dog to do tricks...for me.
When you create disk there are a few selections to decide on (depending on your output intentions). these are under the various disk type do not choose 'smart fit" if degrades quality my opinion,choose best quality. also what you preview is not necessarily what the actual DVD will produce on TV.
Jim
Intel i7-2600@3.4Gz Geforce 560ti-1GB Graphic accelerator, windows 7 Premium 12GB memory

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All vodi
Senior Contributor Location: Canada Joined: Aug 21, 2009 11:24 Messages: 1431 Offline
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To save yourself a great deal of time burn to folder first and play back the video from the "Stream" folder created. That is what will be written to DVD. Win 10, i7
BillHansen [Avatar]
Senior Member Joined: Jan 03, 2012 12:43 Messages: 178 Offline
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HDedit = You recommended: " burn to folder first and play back the video from the "Stream" folder created. That is what will be written to DVD. "

This addresses another problem I've had and which I've asked about on the forum. There seems to be no way to play videos produced by PD and burned to the computer's HD. What I see on the HD are two BUP files, one VOB file, and two IFO files. The IFO files will "play", but of course they're marred by banding. The BUP and VOB files won't play at all - no surprise there.

So - if you know how I could play a video file edited in PD and saved to HD, I'm eager to know the secret. Many thanks!

Bill Bill Hansen
BillHansen [Avatar]
Senior Member Joined: Jan 03, 2012 12:43 Messages: 178 Offline
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To James1 - Okay, now you've done it - you've given me an excuse to brag about Ariel. She's eleven years old, has had three operations for various cancers and has leukemia, currently in remission. Yet, at an age equivalent to about 88 for a human, she still charges around the house or yard ocasionally, walks 2-3 miles on hills with us, does all her AKC jumps at the same height she jumped when she was young. She has eight AKC titles in obedience and rally, is a therapy dog certified by Therapy Dogs International, and has the AKC Canine Good Citizen award. She is the cheerful, loving, playful, funny despot of our family, telling us when it's time to get up in the morning, when it's time to go to bed,time to feed the dogs, turn out the light, and so on. Second only to my wife, she is the love of my life.

About those options to produce videos and burn them to disk - I've tried every one of them except MPEG-1, burning to DVD (not BD) and all of them give me the same less than desirable appearance, far different from the Preview. Hardware acceleration on or off, SVRT on or off - doesn't make any difference. I've come to the conclusion that the Preview which is available just prior to burning (the arrow which is just to the left of the "Start burning" button) may or may not indicate how the video would look if burned to BD, but it has no relation at all to the video's appearance on DVD, no matter which format is used to produce the video. Surprisingly to me, AVCHD doesn't look any worse than MEPG-2 (which has a much lower bit rate, closer to the bit rate of DVDs).

Another forum member has been trying to help me with this, so better days may be coming - but I'll be grateful for any insights you have too.

Finally -If you know how I could play videos which are burned back to the computer's HD, please let me in on the secret. See my note to HDedit, just above this one in this thread.

Thanks - Bill Bill Hansen
BillHansen [Avatar]
Senior Member Joined: Jan 03, 2012 12:43 Messages: 178 Offline
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HAH! I'VE GOT IT!

As usual with these things, the solution was not obvious to me, but it's too simple:
I don't know whether I should feel a bit stupid, or not. Since I've been burning to DVDs, I've been using PD 10's default "DVD" option in the "Create Disc"/2D Disc screen.

If, instead of that, I (1) produce in AVCHD, then (2)click on the "2d" tab in Create Disk, (3) choose "AVCHD" instead of "DVD" (and then activate AVCHD online), and then (4) burn my disc - all my problems go away! The resulting disc was burned to DVD using an "inapproprioate" choice in the 2D menu, but the clip now plays perfectly - almost no noise, nice details. Delightful!

The other nice thing is that if I burn these AVCHD files (see above) back to the HD, they do have the BDMV/Stream folder, which of course plays perfectly well. When I burn files back to the computer's HD using the DVD button in the "Create Disc/2D" Disc path in PD, all I get are IFO, BUP, and MOV files.

Of course, I'll have to find out whether people with less powerful computers can play these discs. I assume they can't - so for them, I'll burn using the DVD option and they'll just have to put up with the noise etc. They'll probably be much less fussy than I am anyway.

Bill

Bill Hansen
James1
Senior Contributor Location: Surrey, B.C., Canada Joined: Jun 10, 2010 16:20 Messages: 1783 Offline
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Hi Bill,
glad you have it sorted out. sounds like Areal is your winner!.
Jim Intel i7-2600@3.4Gz Geforce 560ti-1GB Graphic accelerator, windows 7 Premium 12GB memory

Visit GranPapa64's channel for your YouTube experience of the day!
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