I have a new project in the works and was wondering if any of you have used a company to manufacture your cassette releases. If so, what companies can you recommend? Thanks.

There's only one company doing cassettes these days.

I've not heard anything bad about them and they have zillions of options for cassette styles.

http://nationalaudiocompany.com/Cassett ... 01181.aspx

I personally have not done any business with them, though, so I have no anecdotes about their service.

i've bought blanks from national audio before, good quality shipped on time etc, never had anything manufactured before though, so i don't know how it is. for me and diogenes' split tape we had cryptic carousel do the manufacturing http://crypticcarousel.com/duplication.html i didn't do any of the dealing with them but we received them on time and they look and sound great. good price too.

Hit up the Jade Badger. I think Sneed's been using national for his last batch.

Being Canadian, i use these guys: http://www.duplication.ca/quotes/canada/english/cassette-packages.php
I'm waiting for an order of colored tapes for my new e.p.. They always have colored tapes on special too, they really have some cool colors. They also have good prices for inserts.