That's right. Here's how I believe it works:<br><br>Windows formatted iPod = FAT32 format, readable by BOTH Macs and PCs<br><br>Mac formatted iPod = HFS+ format, readable ONLY by Mac.<br><br>So, no, you can't do that. However, if all your music is on your mac, you could reformat your ipod (it will erase it) on the PC. Then plug it into the mac and using it as a firewire disk, transfer all the music from the mac to the PC that way.<br><br>