Storage Solutions more than 1.5gb on a 700mb cd

Status
Not open for further replies.

lazyme

Contributor
Got hold of a 700MB Cd that contains all versions of Windows 2003 Server. On copying or viewing its properties it shows 1.5 GB data :S
Can someone explain how this is possible?
 
It uses fake files which links to some other in the same CD. This is usually done on such multi boot CDs where there are lots of common files. So, they use only one file and fake shortcuts are created wherever the same file is needed. Hence a computer (windows) gets fooled when trying to calculate the size as it tends to tell double or more the space than a single file takes.
 
  • Like
Reactions: 2 people
its something like fake links but those files actually work they arent normal shortcuts or watever we kno of...
even i have this one dvd of some 20 odd versions of windoz
the dvd has 25 somthing gb of data but it fits on one 4.7gb media..
i`ve been lookin for something to create such disks... if anyone comes across anything can u pls let me kno..
 
Hello,

Probably you know this by now, but if you don't, for "compressing" a CD/DVD image you can use ULTRAISO like this: under menu FILE / PROPERTIES you will have the properties window of the image you want to create; right from where you choose the media type (650MB/74min; etc...) you have a checbox named "Optimize". Check-it and in the CD/DVD image if you have 2 or more identical files included in your image then those will be written physically on the image only once with 2 or more links to them.

Hope that will be usefull to you.
 
  • Like
Reactions: 2 people
I too had "come accross" a 9-in1 windows install CD. One observation: as it relies on duplicate files for the so called "compression", all of these ex-in-1 disks seem to exist for only one "flavour" of OS. Like, what I had was 9 types of XP and what the OP has has 2003 flavours, etc.
 
Yup exactly right.

And the official tool to do this kind of optimization is CDImage. Quite a useful tool it is.. used it a lot while slipstreaming Service Packs & XP Hotfixes.
 
my fren downloaded a transformation pack for vista ..... it was 1.5MB rar file and unziping it was more than 200MB :-O
 
i dunno about 1.5 gb but i know for sure you can squeeze upto 800+ odd mb of data on a normal 700 m cd . i am also sure it happens only with video data since it does not need much error checking ,
 
Status
Not open for further replies.