mirror from Debian-DVDs

[Antonio Macchi <antonio_macchi@alice.it>]

hi
I have mounted on my pc, the three Debian-DVDs in three directories

/debian/DVD1
/debian/DVD2
/debian/DVD3

(addr: 10.0.0.2 - server: vsftpd)

so I can apt-get packages from others pc using:

deb ftp://10.0.0.2/debian/DVD1 etch main contrib
deb ftp://10.0.0.2/debian/DVD2 etch main contrib
deb ftp://10.0.0.2/debian/DVD3 etch main contrib


it works ok with apt-get, but I can't using it to create a new installation

(Change mirror -> ftp -> 10.0.0.2 -> /debian/DVD1 -> stable)

I can't find out information about it, so can someone help me?
is it difficult to create a *compatible* mirror using DVDs?

thanks for all