I can's explain this...

[kosmiq]

hmmm ok... Have you ever experienced dummy files as protection on games?
Like commandos, there are 3 files (I think) that claims to be 800mb on the CD on top of that is the actual game files. How would that fit on a CD? Answer is it doesn't. The files actually are not 800mb but shows themselves as that because they have an attribute that says so.

The same is on the Windows XP 11in1 DVD. Because the CAB-files are shared between the different windows versions they only need to really exist in one folder. But because of file checking and probably also size check (?) there needs to be dummy files that shows up at the correct size but are not that big when written onto disc. Most probably the filesystem is fooled into thinking that the files are bigger then they really are. But when the install is running it reads from the folder with the correct .cab files.

This release is ISO because of the special filesystem required.

I sure hope the above won't give me any troubles now, it was taken from the nfo of 11in1 XP. Note, I do NOT have this DVD I simply found the nfo somewhere, not gonna tell you where and how.
That little qoute tells me that the filesystems is most likely fooled.

Hope you understand now...