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computers / alt.comp.os.windows-11 / Re: Which size is correct?

Which size is correct?

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From: pj@jostle.com (Peter Jason)
Newsgroups: alt.comp.os.windows-11
Subject: Which size is correct?
Date: Tue, 08 Aug 2023 17:36:13 +1000
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by: Peter Jason - Tue, 8 Aug 2023 07:36 UTC

I burn movies to DVD-R platters that have a capacity of 4.7GB.

The Explorer "properties" of downloaded movies have two sizes
shown...

https://postimg.cc/bGRwLmnm

....one is 1.7GB and the "size on disk" is 1.9GB.

What's the difference, and which do I use when fitting to a DVD
platter?

Re: Which size is correct?

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From: usenet@andyburns.uk (Andy Burns)
Newsgroups: alt.comp.os.windows-11
Subject: Re: Which size is correct?
Date: Tue, 8 Aug 2023 09:53:42 +0100
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by: Andy Burns - Tue, 8 Aug 2023 08:53 UTC

Peter Jason wrote:

> I burn movies to DVD-R platters that have a capacity of 4.7GB.
>
> The Explorer "properties" of downloaded movies have two sizes
> shown...
>
> https://postimg.cc/bGRwLmnm
>
> ...one is 1.7GB and the "size on disk" is 1.9GB.

actually it's not saying size is 1.7GB and size on disk is 1.9GB

it shows "size" in both bytes and GB
as well as "size on disk" in both bytes and GB

in both cases the GB is technically GiB, but Microsoft are trying not to
confuse people

> What's the difference, and which do I use when fitting to a DVD
> platter?

Your blank DVDs are 4.7 GB = 4.38 GiB, so you're ok fitting 1.77GiB onto
a 4.38GiB DVD, I guess Microsoft ended up making it confusing after all ...

the "size on disk" is referring to the size on your hard disc, rounded
up to NTFS cluster size, not the size on the DVD.

GiB vs bytes is just a factor of 1000/1024 * 1000/1024 * 1000/1024
bytes -> kiB -> MiB -> GiB

It's the old bytes to Gibibytes factor

https://www.google.co.uk/search?q=1908142080+bytes+to+GiB

Same as why some people think they've been "swindled" after they buy a
8TB hard disk and windows says it's only 7.28TB

Re: Which size is correct?

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From: klee@unibwm.de (Herbert Kleebauer)
Newsgroups: alt.comp.os.windows-11
Subject: Re: Which size is correct?
Date: Tue, 8 Aug 2023 11:08:31 +0200
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by: Herbert Kleebauer - Tue, 8 Aug 2023 09:08 UTC

On 08.08.2023 09:36, Peter Jason wrote:
> I burn movies to DVD-R platters that have a capacity of 4.7GB.
>
> The Explorer "properties" of downloaded movies have two sizes
> shown...
>
> https://postimg.cc/bGRwLmnm
>
> ...one is 1.7GB and the "size on disk" is 1.9GB.
>
> What's the difference, and which do I use when fitting to a DVD
> platter?

On your posted picture the file size is

1.908.139.701 byte and size on disk is
1.908.142.080 byte

The size on disk is always a multiple of the cluster size,
in your case 4 kbyte. The file occupies 1.908.142.080 byte
on the disk, but the last 2379 byte of the last cluster is
just garbage, not belonging to the file.

In Windows Explorer GB means 1024x1024x1024 byte,

1.908.139.701 / 1024x1024x1024 = 1.77.....
1.908.142.080 / 1024x1024x1024 = 1.77.....

Re: Which size is correct?

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From: nospam@needed.invalid (Paul)
Newsgroups: alt.comp.os.windows-11
Subject: Re: Which size is correct?
Date: Tue, 8 Aug 2023 05:08:44 -0400
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by: Paul - Tue, 8 Aug 2023 09:08 UTC

On 8/8/2023 3:36 AM, Peter Jason wrote:
> I burn movies to DVD-R platters that have a capacity of 4.7GB.
>
> The Explorer "properties" of downloaded movies have two sizes
> shown...
>
> https://postimg.cc/bGRwLmnm
>
> ...one is 1.7GB and the "size on disk" is 1.9GB.
>
> What's the difference, and which do I use when fitting to a DVD
> platter?
>
> P
>

The file you show, is a raw movie file, a .mp4 file.

1,908,139,701 is the movie size, and that's the number you work with.

When the file is stored on a storage device, one of the sectors
will be only partially full. But the length field stored somewhere
on the media, indicates which bytes are valid, and which bytes
can be ignored.

Options:

1) Burn a data DVD with one .mp4 file showing on it in File Explorer.
Play manually by right-clicking the .mp4 data file, select VLC
from right-click menu, and the movie will play without interruption.

Some TV sets can undoubtedly manage the same feat without help.

2) Use DVD mastering software, transcode to a series of 1GB MPEG2 chapters,
and make a standards compliant "DVD video" format file. This will
cause the number of bytes used, to increase considerably. But the
disc will then play in an ancient STB sitting on top of your old
vacuum tube TV set :-) You compare the size of the ISO9660 file
made by the DVD mastering software, to that 4.7GB number for single layer DVD.

Paul

Re: Which size is correct?

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Subject: Re: Which size is correct?
From: Breeder_Bucky-Breeder@That's.my.name_Don't.wear.it.out (Bucky Breeder)
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by: Bucky Breeder - Tue, 8 Aug 2023 16:39 UTC

Peter Jason <pj@jostle.com> posted this via
news:por3di50b1u1la2br63fl400qac60vh649@4ax.com:

You need to be more concerned about the file extension on the downloaded
movie than the nuances of GB vs GiB.

The movie you are showing at the above link is an MP4. Actual DVD movies
have a VOB format.

You can convert an MP4 to another video format that your DVD player support,
like DivX, AVI, MPEG-2 and MPEG-1...

If you burn that MP4 as it is to a DVD disc, you will have preserved the file
- the data - to a data disc, but it will not play on a DVD player without
converting it first. You might be able to slap it around to play on a
computer; but only as an MP4 file, not as a DVD/VOB file.

I AM Bucky Breeder, (*(^;

And *NO*, that is *NOT* a Jedi Light Saber I have in my pocket!

But that doesn't necessarily mean I'm happy to see you either.

Subject	Author
Which size is correct?	Peter Jason
Re: Which size is correct?	Andy Burns
Re: Which size is correct?	Herbert Kleebauer
Re: Which size is correct?	Paul
Re: Which size is correct?	Bucky Breeder