Recording thunder and rain with the Edirol R-09

Edirol R-09 portable field recorder
For its price (around £200) the R-09 has pretty good sound quality, though the noise floor is quite high especially on high mic gain setting. Its main advantages are size and good battery life. The R-09 fits easily into a coat pocket and runs for hours off 2 AA batteries.
Here is a recording of a rainstorm with some thunder from my bedroom window. The Edirol was attached to the inside of a velux window with electrical tape. Although it has a neoprene case it isn’t waterproof! From around 15 minutes of recording this was edited down to 5 minutes of usable sound (without sirens, aeroplanes, traffic and rail noise)