Welcome to the forum, I have the same issue, I don't know if you have multiple artists, and the names of the files don't have a numeric order, but for instance I will put in the burn window an audiobook that I have converted to mp3. I can usually fit more than 1 book on a cd depending on the compression. The last one (book that is) I put in is the first to play. That is how I deal with it. I guess you could try a rename program, but I think the last entered is the first to play. Hope this helps.