how do i create a bootable image using mkisofs

[Tomoki Taniguchi]

My laptop came with a recovery dvd.
The recovery disc contains a harddrive image
and restores it using some program (i think its called PQimage)

i am trying to use that disc to install windows XP
under VMware player.
But the recovery disc does a hardware check to see if
is the laptop for which it was built for.

So I am have copied the contents of the disk to a folder.
And trying to edit the automain.bat to skip the hardware check.

I created an ISO image file using mkisofs
mkisofs -o recovery-dvd.iso /edited-cd-file-dir

i mounted this under vmware player.
but the image file doesn't seem to be a bootable image.

the root dir of the cd contains two files i feel
are some how related to the issue

BOOTCTG.BIN: data
BOOTIMG.BIN: DOS floppy 1440k, x86 hard disk boot sector

what options do i need to include in the mkisofs command to
to make the image file bootable?

TIA
Tomoki Taniguchi