Excerpt: When I first enrolled in French lessons, a voice recorder became an indispensable tool. I pledged to expand my limited knowledge of foreign languages because I thought it would definitely improve my interaction with European people when I needed to travel in the future.
Summary: I've used this digital recorder to record the audio a lot of presentations and discussions by and with my professors. This little thing picks up across a room amazingly well right out of the box. The voices of my professors can be clearly heard. I'm using the unit in .WAV mode to be a little more windows compatible - not for myself, but for friends that I share dialog with.
Summary: I'd happily switch to a one-track (instead of multi-file choices) simple Play-Stop-Record-Rewind type of recorder with minutes left counter and battery-low viewer . This model is a tiny computer with useless extras which needs reviewing the use-book and strong eye glasses to use . I've used it twice since I bought it. it's like-new condition. I went to Radio Shak but the workers there couldn't figure out how to work it either .
Summary: I really love this device for listening to spoken audios without earphones. I had the older model of this recorder/player, and one day I thought it broke so I quickly checked Amazon to see if I could get another one. That's when I discovered this model. It's much better than the WS-331 in ease of use, plus it has twice the memory. I like the way the buttons are laid out and the backlit screen is easier to read and navigate.
Sound quality and mic sensitivy is great. Can charge its battery connected to a USB port.
10 February 2013
Summary: Like every one of the 3 or 4 Olympus recorders I have or I've had, this WS-510M also has purely excellent audio quality and a very sensitive microphone system. This one is stereo or you can also set it for monophonic recording. (Mono seems to work best for phone call recording.) I only wish there was some way to power this thing from AC outlets. It will go into battery charge mode if you press and hold the stop button when connecting it to a USB port.