Ok, I downloaded Sansa Media Converter so I could put vids and pictures on my Sandisk Sansa. But when I wanted to put a video I made in Windows Live Movie Maker on to it, this little note keeps popping up saying: "This file could not be imported, please install the correct codec first, If the files can playback on your computer, probably Sansa Media Convert does not support this format, or the file is corrupted." I didn't really understand that...I'm just annoyed because It took awhile to make that video and could not find any answers on the Internet about this... So pleeeease tell me what to do If you know what the problem is. :(