Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, DJ Delorie <dj@...> wrote:
>
> 
> Matthew Smith <matt@...> writes:
> > Hi Folks
> 
> Hi!
> 
> > The one thing that I have acquired this time round is the
not-for-profit 
> > 'Standard' version of Eagle.  Getting that extra board space is well 
> > worth it, in my mind.  Still waiting for the manuals, which were
out of 
> > stock when I ordered.
> 
> Beware that Eagle has some nasty DRM built-in to it, some folks have
> found themselves locked out of their own designs due to it.  Be *very*
> careful about any library you use other than that which you create
> yourself.  I use gEDA and PCB (and help maintain PCB), which have no
> limits, no cost, and use text file formats.
> 

Interesting, I have used Eagle for many years and have not heard about
that. 
I know there are limits on board size and layer count for the free and
nonprofit versions. Do you have any more specifics or links concerning
DRM and eagle?