I'm developing an application with PIC32MX, that record 3 WAV sounds and store theme into SD. Unfortunately the speed that I have reach is 155 kB/s and is insufficient for my application. Then I have to move fatFS, that use multi sector write speed wich seems to solve my problem. I download the latest library for fatFS here: http://elm-chan.org/fsw/ff/00index_e.html (bottom of the page). I read on the internet that this code is generic and only some part of code needs to be adapted, based on microcontroller in use. I have spent many time trying to understand what are this portions of code, but I still dont'find theme. Anyone can help me?