Converting 4 Disc PC games, to 1 DVD PC Game

[allegro16]

Hi,

As i have written, i tried that option:

"1.Use IsoBuster to extract the cd's to to an empty folder on the HDD (the folder has the name of each cd, so "XFILES1", "XFILES2", etc. Then include the autorun.exe and inf. (So folder contains files autorun.exe, autorun.inf and folders XFILES1 until XFILES7)
Burn it to DVD.
"

So i have basicly a temporary folder E:\XFILESDVD\
with the contents of each cd. (Each folder name is an extracted cd)

So:

AUTORUN.EXE
AUTORUN.INF
XFILES1 (cd 1)
XFILES2 (cd 2)
XFILES3 (cd 3)
XFILES4 (cd 4)
XFILES5 (cd 5)
XFILES6 (cd 6)
XFILES7 (cd 7)

*of course folder is without (cd *) info*

This i burned to a DVD, but i tried to install from the HD aswell.
No luck.

So, i don't know what to do next. I identified the installer as "InstallShield Setup Launcher 5.10.146.0", Copyrighted '96-'97.
(Opened Setup.exe with eXeScope 6.30)

But that's as far as i got.

Tnx,

Allegro.