I am a complete novice in creating audio CDs which is why I may be asking basic questions. Here goes. I am burning some MP3 files to a CD. Because these are parts of a series of lectures - each lecture made up of 6 MP3 files, the order they follow each other in playback is important. What determines the order of play (that is which burned MP3 file follows the other)? Is it the alphabetical sort name order of the MP3 files, date of file creation, order of burning, etc.? Can one use separate folders in a MP3 CD (one for each 6 MP3 files making up each lecture)? Will that work on a CD player that can play MP3 files but is not attached to a PC? I've tried to combine several MP3 files into one file, but do not know how to do it, or do not have the tools to do it with. I do own Nero 6, Windows Media Player, and also downloaded CDex. Any help apreciated.