thanks 4 your response. I got the IRIVER IFP-799, it has a line-in with option to choose whether is "line-in" or "external mic" under controls. I noticed by changing the setting from "line in" to "external mic" will automatically increase the recording sound level. Another question with my 719. Even I put the battery in, I change it to "power on", the red light will turn on for one second and then disappeared. Does this mean something wrong w/ my 719? or is this supposed to be how it works? Where can i get more information about Sound Professionals BMC-2 microphone? are they big? I need something small and can be hidden easily. Also, for the need of a preamp, I can always edit the recording by amplifide it using Adobe audition, right? Sorry that I have so many questions.