The PSP can sync with Linux and UNIX. This is possible thanks to MacOS X's BSD features. So all I need to do is switch the PSP to USB mode, mounting the PSP and downloading the files to /media/sda1/mp_root/100mnv01 where the video files should go. However, when I switch to normal mode, the files do no appear. I can NOT access the links that I downloaded the files through the PSPs web browser. Why are these files not showing in the video section of my PSP?