Some Blu-Ray conversions look grainy?

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Moviecouple
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Some Blu-Ray conversions look grainy?

Post by Moviecouple » Fri Jun 01, 2012 3:09 pm

I have started to archive my Blu-Ray collection for storage recently and noticed that on some of the converted movies, they tend to look really grainy.

I first take the Blu-Ray and use MakeMKV and rip it to an MKV file. Then use Handbrake to convert it to an M4V file. I use the AppleTV 2 setting with default Decomb and Deinterlace... As I have done with all my DVD's previous to Blu-Ray. Some conversions look real grainy, not pixelated, just grainy. Jurassic Park 1 grainy. Jurassic Park 2 not. Evil Dead grainy. Evil Dead 2 not. It is random.

I thought maybe the way older films were shot or how it was authorized into Blu-Ray or the File Sizes?? Modern movies like Captain America or Star Trek (2009) look fantastic though without an ounce of grain.

Any thoughts or ideas... or is it something I am doing wrong or oddly?

mduell
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Re: Some Blu-Ray conversions look grainy?

Post by mduell » Fri Jun 01, 2012 3:38 pm

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We've found, from repeated examples, users can't be trusted to accurately and completely describe their encoding settings.

Also have you watched the MKV? A lot of older movies are grainy by modern standards.

Moviecouple
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Re: Some Blu-Ray conversions look grainy?

Post by Moviecouple » Fri Jun 01, 2012 8:19 pm

I really leave all my settings to stock from the handbrake program. I just use the Apple TV 2 setting, MP4 Container, Large File Size, Decomb - Default, Deinterlace - Default. Everything else is is left alone.

Been using the exact same setup for DVD's for years and figured it should be the same for Blu-Ray's.

Guess I'll have to check the MKV file before conversion with Handbrake to see if I notice the grain.

Smithcraft
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Re: Some Blu-Ray conversions look grainy?

Post by Smithcraft » Fri Jun 01, 2012 11:01 pm

Until we see a log, as mduell pointed out, we really can't know what's going on.

SC

TedJ
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Re: Some Blu-Ray conversions look grainy?

Post by TedJ » Sat Jun 02, 2012 11:35 am

I'm willing to wager the grain you're seeing is film grain from the original source. This is certainly the case with the BD release of Jurassic Park that I've seen.

Also, the decomb and detelecine filters are unnecessary on the vast majority of Blu-ray sources; disable them for a performance boost.

Moviecouple
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Re: Some Blu-Ray conversions look grainy?

Post by Moviecouple » Sat Jun 02, 2012 3:44 pm

Thanks for the info. Curious as to why it would be recommended to use Decomb and Deinterlace on DVD's, but not for Blu-Ray's? Any insight you can tell me?

nightstrm
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Re: Some Blu-Ray conversions look grainy?

Post by nightstrm » Sat Jun 02, 2012 5:41 pm

Moviecouple wrote:Thanks for the info. Curious as to why it would be recommended to use Decomb and Deinterlace on DVD's, but not for Blu-Ray's? Any insight you can tell me?
There are many more interlaced DVD sources than Bluray.

GregiBoy
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Re: Some Blu-Ray conversions look grainy?

Post by GregiBoy » Sat Jun 02, 2012 8:36 pm

With the exception of Bluray disks authored by the BBC who persist on using interlacing.

TedJ
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Re: Some Blu-Ray conversions look grainy?

Post by TedJ » Sun Jun 03, 2012 9:28 am

...which won't work because they also insist on using VC1 video. :p

GregiBoy
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Re: Some Blu-Ray conversions look grainy?

Post by GregiBoy » Sun Jun 03, 2012 10:17 am

They're almost as bad as Sony with their Cinivia SH*T!!!!

Will never again buy a bit of Sony equipment, no matter what.

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JohnAStebbins
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Re: Some Blu-Ray conversions look grainy?

Post by JohnAStebbins » Sun Jun 03, 2012 6:00 pm

GregiBoy wrote:They're almost as bad as Sony with their Cinivia SH*T!!!!

Will never again buy a bit of Sony equipment, no matter what.
I made that decision a couple decades ago for similar reasons. Unfortunately, there is always a new generation of suckers they can market to and thus they remain in business :roll:

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