BM-575 For those quick memos, nothing beats Sony's BM-575 Portable Microcassette Dictating Machine. Featuring Slide Switch Operation, Voice Operated Recording, a Dictate Conference Switch, a Fast Playback Function, and 2 Record/Playback Speeds, this Dictating Machine eliminates note taking for good!                                 DS4000 Giving you superior sound, longer recording time, and the ability to quickly transfer audio files to a computer via USB, PC connection, or removable SmartMedia, Olympus digital recorders provide an affordable and easy-to-use professional dictation solution.