Where can I get quality cassettes.

I would like to know where I can get blank TDK MAR or MAXG metal cassette tape. All the local stores only sell the cheapest cassette tape anymore.
You might try J&R Music World or some such similar place. Just a thought. Sean
Go to Terrapin Tapes, www.ttapes.com. Excellent customer service and good prices.
I bought some sealed DCC cassettes off ebay to record over. I haven't had a chance to check them out yet but for the price how can you go wrong? There's also the chance you might find 1 or 2 you like. Here's the link:

I'll second Terrapin Tapes. I've been a customer for almost 9 years. Never been disappointed.
My thanks to Sean, Jond, Driver and Slipknot1 for your helpful responses. I'll be checking these sources.