Compression Artifacts H.265/H.264

[signals]

Glad to hear that, I think Dora took it to the developers.

[shmn]

Hi shmn, I can't' reproduce exactly what you are seeing either. The tests I have made are not great, but the original disc does not look very good when played either. I think it may be way the television video was processed when the disc was made. Blocking like that around fast motion objects means that something in the chain (either encoding or playback) is not coping with the high peak bitrates or calculations it generates. Try a smaller screen size for the encoding like 1280x720 or smaller, your player will upscale it on-the-fly to 1920x1080 or whatever your screen requires.

Well, I tried it again with the latest version 10.0.4.9 and now the problem doesn't happen. That's very odd. I had tried ripping this disc a couple of years ago and had the problem but never did anything about it and then tried again recently with version 10.0.4.7 (I believe...two versions previous to 10.0.4.9) and with 9.3.2.1 and the problem occurred again no matter my compression settings which is when I posted the problem. Also tried different BR drives.

But I guess it doesn't matter now because whatever the problem was...it's now fixed. Thanks.

[signals]

Hi shmn, I can't' reproduce exactly what you are seeing either. The tests I have made are not great, but the original disc does not look very good when played either. I think it may be way the television video was processed when the disc was made. Blocking like that around fast motion objects means that something in the chain (either encoding or playback) is not coping with the high peak bitrates or calculations it generates. Try a smaller screen size for the encoding like 1280x720 or smaller, your player will upscale it on-the-fly to 1920x1080 or whatever your screen requires.

[Dora]

I have tried converting to mkv （H265 0.15 bit）with DVDFab 10048, but problem didn't reproduce.

[shmn]

shmn,
I have the disc now,

Any progress or solution to this issue?

[Chameleon]

Actually, a higher bitrate makes it worse. The screenshot from my original post was at 0.15 bits/pixel and this one was at 0.25 bits/pixel. The blocking artifacts increased in number and size at the higher bit rate. Plus, I've compressed hundreds of Blu-rays at my normal settings and this is the only disc that has this problem.

Well, I tried to upload a screenshot but there is a limit to 100KB. Really? Is this 1990? And no JPG? I took a small crop of a screenshot from VLC measuring 480x380 pixels which is pretty small and it's still 368KB. So a 100KB crop of a screenshot would be just about useless.

If this is the only movie that this happens on it must have something to do with the pressing. ASs for no JPG, i feel your pain, but I bet it will be added soon as this is a new VB forum update.

[shmn]

Raise the Bitrate a bit.

Actually, a higher bitrate makes it worse. The screenshot from my original post was at 0.15 bits/pixel and this one was at 0.25 bits/pixel. The blocking artifacts increased in number and size at the higher bit rate. Plus, I've compressed hundreds of Blu-rays at my normal settings and this is the only disc that has this problem.

Well, I tried to upload a screenshot but there is a limit to 100KB. Really? Is this 1990? And no JPG? I took a small crop of a screenshot from VLC measuring 480x380 pixels which is pretty small and it's still 368KB. So a 100KB crop of a screenshot would be just about useless.

[Chameleon]

Raise the Bitrate a bit.

[shmn]

Did you got blocky compression preview it？

Yes. See attachment.

[Dora]

Did you got blocky compression preview it？

[shmn]

shmn,
I have the disc now, please tell me a chapter that has sufficient motion to notice this effect.

Well, there isn't much motion other than the conductor waving his hands and people playing orchestral instruments. The second chapter is what I took the screenshot from in my original post so that's probably a good place to start.

Thanks for tackling this problem.

[signals]

shmn,
I have the disc now, please tell me a chapter that has sufficient motion to notice this effect.

[Meesdem]

SHMN Region 0

For commercial use. Travel by bus-train-airplane etc... all 0.

[shmn]

A little off-topic, but in order that this doesn't get used by others, there is not such thing as region 0 (DVD or Blu-ray). It is either not region coded or region all (which is region ABC). With Blu-rays, region coding is optional. No studio, that I know if, actually codes region ABC. In that case, they just do not do region checking.

Technically, if a studio were to mistakenly check for region 0, it would not play anywhere. I'm not even sure it is possible to do that.

Region 0 is printed on the back of the case. See attachment.

[shmn]

shmn,
The disc has been ordered and should arrive in about a week. Nothing obvious in the log except that you also had AnyDVD running, which DVDFab shut down. This should happen automatically for either software now, but safer to exit the one you are not using.

Thank you.