Audio file conversion problem?

Question

Recently I recorded a talk on yoga using my MP3 player and then downloaded it into my computer.The file is .wav 15mb for a duration of one hour 32kb/second and in format imaadpcm.
When I wrote it to CD,the player is not taking it.Then I tried to convert it into MP3 and the files goes up to 55mb(128kb/s&mono).I tried various converters but no use.If I reduce the bit rate,the sound id unintelligable.
How can I convert it into MP3 and keep the file size around 15mb?I tried switch,Anyaudio converter,Blaze etc.

Answer 1

have u tried a program called prism audio converter? it's free.