The 730/735 only records in mono. Sure it can make a stereo file, but both channels are the same. Also the audio quality is bad compared to the 1020 or 808 (best sound - 1020 is a bit muffled and needs a treble boost), so no Rich Recording and the mics are unable to withstand high decibel levels without distortion. I am very pleased with the phone in general, but dissappointed by the poor audio recording quality.