Well, first question you need to ask is
which pronunciation do you want to learn
currently there is two different Coptic pronunciation
The original pronunciation
And the one that was invented and adopted by the church (and it is the one that is currently used in the mass)
if you want to know more, you might have a look at this link
http://kame.danacbe.com/index.php/topic,2.0.htmlHere in this forum we adopt the Original pronunciation
check out this video its a hymen in Coptic
http://www.youtube.com/watch?v=OGIa4steqVwI can get you many sound files that contains Coptic lessons
but its Arabic/Coptic