(dlive) live-build or rebuild

[Narcis Garcia <debianlists@actiu.net>]

Hello, I need to have a Debian 8 Live-CD with LXDE, same as published at
debian.org but that fits in a CD-ROM.
I've read that the enormous size of Live-CD is due to the inclusion of
much language packages (difficult to be used), and because of this I
want to rebuild published ISO discarding inessential things for me.

I've found this guide:
http://www.debianuserforums.org/viewtopic.php?f=9&t=185
but I'm not clear:
1. An IDENTICAL image as published can be generated?
2. An existing .iso image can be taken to make only a derivative?

Thanks.
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