Previously Ubuntu showed 1MB as 1024 (1 MiB). Now it displays 1MB to be 1000kB.
An Ubuntu .iso will now read 708MB in Lucid but 675MB in Karmic.
Jenny Silver notices her freshly download Ubuntu .iso is 708MB. Alarm bells ring â” her CD-R has â700MB capacity’ written on it. Does this mean she’ll have to use a DVD-R instead?
It’s actually all okay
In reality, no. In fact when tries to burn the .iso she’ll see she has actually has 25MB free on her â700MBâ disc. This is because despite file sizes in Nautilus now being displayed âcorrectlyâ various applications still use the old unit reading. Her 700MB disc is, actually, 734 MB.
There is a âbug’ on this that can be found @ Bug #315913
Thank to Miguel