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Input:
Question: How many seconds does it need to power up and start recording? I want to be able to push a button and start recording instantly. Thank you very much
Document: The connection to the computer is via a standard size USB connector. Battery life seems to be quite long (haven't run out of power and am on my first set still).Do remember to pause recording using the red &#34;Record&#34; button. If you push &#34;Stop&#34; every time you want to take a break you'll have a million files to deal with after a recording session.
To do that best, before you start driving: hit the REC button, say a word, then hit REC again to pause recording. That keeps the unit ON; you merely hit the REC button again, to resume recording. Same good manners (and safety) with a cellphone, apply to recording.
I can only put temporary, not permanent, index marks into files I downloaded, only noes I recorded. However, It stays where I'm positioned when I switch folders or change batteries, so it doesn't need index marks very much.You may want to do what I did - download the user's manuals for the devices I was interested in buying. Now that I bought it, the manual on my computer is the one I look at if in need to.
UPDATE 3/22/13:  I've used this recorder now to make hundreds of audio recordings. Its batteries have gone out many times, due to so much use. Only once did I lose some of the recording, and that only a tiny part at the end. The sound clarity is good, even on the smallest file settings (like 48kbps). Am really surprised.
Clarity when played back from a computer, is sterling. I use these recorders to record lectures, and they can be inside a pocket, sitting in an open briefcase, and still record well. Test the 'scene' settings in the unit. The 'user' setting is one you can create yourself. Basically, the latter is whatever setting you currently use, when 'scene' is off.Like other Olympus recorders (thank God they don't much change the interface), you have five folders for recording.
I returned this one only because it was much larger than I expected. Though it is small compared to many other recording devices on the market, it wouldn't fit sideways in my shirt pocket like the smaller Olympus models. However, one thing it does have going for it is the fact that it uses two AAA batteries instead of just one. So, no doubt it can run a lot longer without a battery change.
That is, they both know the date and time internally, and they both display the date and time you started a recording, but neither display the "real time" as you play back your recording. So, for example, if you start recording at 8 am, and, at the end of the day, you want to review something from noon, you have to know to FF to 4 hours into your recording to get to noon instead of watching a display that counts to 12 noon.
This little gem has saved my tail so many times at college. As some may know, the professor can sometimes barrel through class material like a freight train. The recording quality of the this device is always crystal clear, and I never have any trouble hearing my professor recite the material for a second time while studying. Trust me when I say that studying for a test or quiz is much more comprehensible, and time efficient, when you hear the professor's exact words once again for clarification.
About the only thing I dislike is, while listening to the recording and trying to type the minutes, if I hit the back button too quick, it goes clear back to the beginning. I haven't played with it long enough to know how to set it up to repeat from a certain spot, but pretty sure it will do that, which would be easier (need to read the directions, I guess). Am extremely happy with this purchase - well worth the price.
Suggest you don't record too many memos before labelling them on your PC. The renamed files WILL show up on this unit, that's one of its many advantages over older models. Still, unless you watch a movie while doing computer housekeeping, you don't want to have to listen to and rename, 20 files at a time. :)  So when you record, get into the habit of FIRST saying the intended title of your recording, even if only a grocery list.
Answer: It takes about 2 or 3 seconds to power on. Press record and its ready.