Grumpy_Mike:
So you dig up a post that is over nine months old to tell me off?But it is you that is wrong.
Yes you can integrate a an SD card easily. But can you record 3 minutes of audio on it?
The SD card will require writing to, it can not sustain writing at audio rates and needs buffering. There is a lack of fast access memory to do that buffering.
So let's see what your solution is. I would be interested in seeing your code, unless of course you don't know what you are talking about. In which case an apology is in order.
My friend made an audio recorder AND transmitter in one device using the Uno. It transmitted the audio over a radio frequency and recorded to an SD card at the same time. Sounded pretty decent too. The SD card was taken apart and wired straight to the Arduino setup he had. He recorded 8 gigs worth of audio. I agree with the other dude... just because it seems difficult doesn't mean it's impossible. 100 years ago computers were "impossible".