Summary: The only reason my rating is so low is because the seller included NO instruction manual....What I have figured out about the recorder is wonderful, but, there are many things I have no idea how to do yet.
Summary: Has good features such as being able to Bookmark an area whether in record or playback mode. Setup is simple, instruction sheet is probably necessary for those not too good at figuring out electronic equipment by trial and error. Ease of use is good. Fallback would be the lack of a USB jack to plug into computer for easy downloads. This can be overcome by using your Sound Recorder found on most computers.
Summary: This is the best recorder I have for recording EVP - not good for recording voices in large, echo-ey places, but is very easy to work with and I have had NO problems with it and it has been used and abused in all types of weather.. The only time I had a hard time hearing playback was trying to listen to human voices recorded in the pool area on the Queen Mary.
Summary: With its compact design and intuitive features, the Sony ICD-B100 was just the device I needed to carry with me for recording quick memory joggers that I'd normally tend to forget. Its use is easy, and multiple folder features actually makes sorting out what is recorded simple. Don't expect a lot of bells and whistles - this device is built for recording sounds, has clockworks, and that's about it.
Summary: I purchased one of these and really liked it at first. It has a good design and the right features at a good price. Unfortunately it went to market untested. After you record 10 or so messages the middle of some messages drops out. If you are recording a phone number, when you play it back it sounds fine, then you record some more notes and get back to the office and play it again and you get "call mary 555(blip) 1" The middle of the recording is gone!
Summary: I notice there are several reviews complaining about the lack of an separate on/off switch on the Sony B100. (The Hold button does not serve as an on/off switch.) However, the B100 does not need an on/off switch any more than does a digital watch. My watch is a cheap Timex digital. It does exactly what an idle B100 does - it keeps track of the time, it displays the time, and it monitors function buttons. Yet it goes about three years on a coin size battery.