MKV file size

MKV playback, recompression, remuxing, codec packs, players, howtos, etc.
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mwrench74
Posts: 1
Joined: Wed Apr 08, 2015 4:13 pm

MKV file size

#1 Post by mwrench74 » Sat May 09, 2020 1:36 am

Some movies I compress to 22 GB. I then convert them to MKV. Most of the time the file size is 4-5 GB smaller than the 22 GB file. If MKV is just a container and doesn't modify the video why is it smaller?

This is what I found out ...

Bit rate of the original movie = 23999 kbps
Bit rate of the compressed movie = 19231 kbps
Bit rate of the MKV file = 17357 kbps

I understand the first two, but why would the MKV have a lower bit rate? Shouldn't it just wrap up the compressed movie into a single file?

Thanks

Woodstock
Posts: 10293
Joined: Sun Jul 24, 2011 11:21 pm

Re: MKV file size

#2 Post by Woodstock » Sat May 09, 2020 1:57 am

My car won't start. Should I paint it?

Your question asks much but provides little information relevant to rendering an answer.

HOW did you compress them to 22GB? HOW did you convert them to MKV? HOW did you measure the bit rate? HOW is this related to MakeMKV?

Grauhaar
Posts: 566
Joined: Thu Sep 15, 2016 3:46 pm

Re: MKV file size

#3 Post by Grauhaar » Sat May 09, 2020 6:51 am

mwrench74 wrote:
Sat May 09, 2020 1:36 am
If MKV is just a container and doesn't modify the video why is it smaller?
MKV is a container which contains the ripped parts (Video, Audio(s), Subtitle(s)) 1:1 without changes (except decryption). The only conversion option is for audio tracks, but the default is to save the orginal.
Good Luck :)
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anothermkvuser
Posts: 20
Joined: Fri Mar 27, 2020 10:38 pm

Re: MKV file size

#4 Post by anothermkvuser » Fri May 15, 2020 1:27 pm

Woodstock wrote:
Sat May 09, 2020 1:57 am
My car won't start. Should I paint it?
:D Brilliant analogy, perfectly said. Thanks for the laugh.

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