K3b sees 4.7GB DVD+R as 4.4 GB

[Gregory Pittman]

Arthur Pemberton wrote:
> Thanks guys. I did the maths myself. This sucks. Dam marketing, and 
> from Sony no less.
>
> On 1/14/06, *Peter Arremann* < loony at loonybin.org 
> <mailto:loony at loonybin.org>> wrote:
>
>     On Saturday 14 January 2006 01:36, Arthur Pemberton wrote:
>     > Hello. I want to burn to dvd some data which is just a tad over
>     4.4GB. I
>     > have some Sony 4.7GB DVD+R blank media. However K3b insists that
>     the media
>     > is two small for the data. Anyone has an idea what is actually
>     going on?
>     >
>     > Thank you.
>     marketing at its finest... the 4.7GB are marketing Giga Bytes -
>     with a base of
>     1000 rather than 1024. Some people us GiB to indicate that they
>     really mean
>     1024 base. For GB to GiB you have roughly - 7.5% difference.
>
>     4.7 GB / 1024 / 1024 / 1024 * 1000 * 1000 * 1000 = 4.38 GiB
>
>     You'll see the same with virtually all storage devices - including
>     harddisks.
>     Read the specs for your harddisk and then check with fdisk or
>     something like
>     that how big it really is :-)
>

I don't know whether it applies to DVDs or K3b, but when using cdrecord 
to make CDs, you can use the '-overburn' option to squeeze a bit more on 
the disk, more than your actual 4.38GB perhaps.

Greg