Selling FreeBSD CDs

[esin kiymac]

To whom it may concern,

I'm working in Middle East Technical University (a university in Turkey)
Computer Center department.

We want to make FreeBSD CDs and sell this CDs with a small price in
order to make advertisement of Linux. Is it legal to do this? Do we face
with any problems? We wanted to ask you before doing this CDs.
If I can get  your opinion I will be very pleased.

Yours sincerely,
Esin KIYMAC