So small and light this is a brilliant voice recorder. I used this for my dissertation interviews (Masters) and each lasted like an hour and an half which this had no problem storing in a file. There are four folders and each I think each holds 100 file. I only used like 2 files per folder for my interviews but would be brilliant for others who have to use voice recorders on a daily basis. Very simple to use and even I, technologically challenged, could use it plus the buttons are nice size so wasn't fiddly at all. The only thing is that when listening back to the recordings with the earphones plugged in, is that the sound only comes out of the left earphone for some reason. I tried it with 3 different earphones (1 brand new!) just in case that was the problem and still the sound was from the left. Slightly odd but only a minor complaint after all its so useful. I'd definitely recommend this to anyone who's fed up with using the old tape recorders which are so loud and distracting - I wished I discovered it sooner for my undergrad degree!