Baby's got back

The Sony PCM-D50 is pretty chunky compared with most portable audio players, but part of the bulk is because of the recorder's use of four AA batteries, housed in the back. From top to bottom, the right side of the Sony PCM-D50 includes a microphone input, line input (analog/optical), a large recording level knob, a power switch with a small guard above it, and a loophole for a wrist strap.