Every time I conduct an interview, I try to get it recorded. I have tried out several high-end recorders, only to find out the are "too good." Too many times when I have used the high end products, they are too sensitive and pick up way too much background noise. When I say recorders - I am speaking of digital recorders. I do not use tape any longer - it is just logistically too impractical. The 4th recorder I decided to try out was basically out of need. I had sent back another expensive model, and I needed one as a stop-gap measure. I bought a $59 model from Wal~Mart.
The recorder I got was a Sony ICD-PX312 digital recorder. It has a removable micro-SD card (which was one of the few requirements I have). It can record in several formats, and has several quality settings. I stated off using everything in the middle range. It it easy to set up and easy to use. I can turn the recorder on and lock the power button so it continually records conversations. I put the recorder in my pocket and conduct the interview. It doesn't matter if it is a shirt or pants pocket - it records the conversation really well.
I would have to give this recorder a 5 out of 5 rating if I had a system. It is easy to use, easy to set up and always gives me a great recording. This equipment is standard issue for everyone working for me.
If you use something that works really well, I would like to hear from you.