[ECOLOG-L] Digital Recorders for Frog Calls

[Matthew R. Helmus]

Hi All,
Can anyone recommend a relatively inexpensive (~$100 or less) digital 
recorder to record calling frogs while in the field--perhaps a digital 
voice recorder that has an external microphone output?

The goal is to be in the field while recording one calling frog, not to 
leave the recorder in the field unaccompanied.

Thanks!
Matt