How can I record voice clips???

I´ve tried on the basic comp program, but I can´t upload them cause they are invalid format (.wav) so I tried downloading a program that can convert .wav to .avi or the such adn can´t seem to get it right, I also downloades an audio editing program but it does not has the SAVE option :rolleyes: , so where do you all record yours??? where can I download them free??? or at least a free trial............ pleeeeasee help me

apparently i found this adn it worked but its a trial, I still appreciate your suggestions and help

here´s my voice and what i say is

"this is my voiece in spanish" *laughs*

sorry but i sounded really weird