Have any of you in bands been contacted from people claiming to be connected to a radio station and asking for demo CD's to play on their station?

As contact for my band, I've received 2 such requests. One from a station in Portugal and one from Nova Scotia. The emails are not personlized. The sender is clearly doing a bulk distribution blind copying the other recipients.

I'm a naturally suspicious person. As much as I love the idea of my band getting air play around the world, I wonder how upfront these requests are.

Can anyone shed light on this?

Thanks.

Emily