Video Storage Space

Ardy

Member
Hello,

I was editing some videos and I exported the file as an MPEG-4 at 1920x1080 60 FPS. The video was approx. 17 minutes and took up 3GB of space. Why is this? I've seen HD videos that are two hours long and only 500MBs. Also, is this normal though?

I included a screenshot of my export settings here and here so you could maybe see what's wrong with it.



Thanks
 

Geoff

VIP Member
You exported your video at 28,000Kbps. As a comparison if you have a 1080p ~2 hour movie that averages 1.5-2GB, they are only around 2,000Kbps.
 

Ardy

Member
OK. I would prefer quality over video size. Is there any way to get 0% quality loss with a lower bitrate and an uncompressed file?

Thanks

Ardy
 

Ardy

Member
Yes. But at what point does using a higher bitrate stop improving your video quality?

Thanks for the help so far,

Ardy
 

beers

Moderator
Staff member
Is there any way to get 0% quality loss with a lower bitrate and an uncompressed file?
How do you propose this actually being a thing? Also, if it existed then it would already be the current standard.
 

Ardy

Member
What I was talking about was basically what I said in my next post.

"at what point does using a higher bitrate stop improving your video quality?"

For example does a bitrate or 100000kb/s make a difference rather than using 35000kb/s or 28000kb/s.

How do you calculate the lowest bitrate to use was basically what I was saying.
 

Geoff

VIP Member
Yes. But at what point does using a higher bitrate stop improving your video quality?

Thanks for the help so far,

Ardy
What I was talking about was basically what I said in my next post.

"at what point does using a higher bitrate stop improving your video quality?"

For example does a bitrate or 100000kb/s make a difference rather than using 35000kb/s or 28000kb/s.

How do you calculate the lowest bitrate to use was basically what I was saying.
The increase in quality stops when the bitrate is the same as that of the original video. If you recorded video at 40,000Kbps, going higher won't net you anything but a larger size.

The difference in quality depends on what you want to do with the video. As you lower the bitrate, you make the file smaller but you will start to see more and more artifacts and loss of overall quality as you continue to go lower. It's really a personal opinion as to how important the ratio of quality/file size is for you.
 

Ardy

Member
Ok. And how do I know what bitrate I have recorded at?

Do I just check in the properties of the video?

Also, how come when I export at 35000 kb/s, the video file's properties on the bitrate shown by Windows does not equal that number?

Thanks for the info,

Ardy
 

Geoff

VIP Member
Ok. And how do I know what bitrate I have recorded at?

Do I just check in the properties of the video?

Also, how come when I export at 35000 kb/s, the video file's properties on the bitrate shown by Windows does not equal that number?

Thanks for the info,

Ardy
Yes that's what I would do. And how far off is it? Depending on the encoder, it's not uncommong to set 40,000Kbps and have it record at 39,995Kbps for instance. If it's far off, you may have selected a variable bit rate.
 

Ardy

Member
OK.

The program that I export with locks the bitrate setting at "variable".
So what does this do?

Also, in the Windows properties for my original video, it says "Data Rate" and "Total Bitrate" what's the difference?

Thanks for the help,

Ardy
 
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