I'm afraid that this is rather long and complicated to describe: I have found that I can copy a whole bunch of MP3 tracks from a CD into a file or folder and when I do that I have the option to select play all and it plays each track seriatim, which is lawyer speak in Latin for one by one. However, if I convert some cda files into a folder having first converted them to MP3 when I tried to click on select all I get this peculiar thing with Windows media player which says close and it does the same thing if they have been converted into Windows media player format. I was wondering if anybody could explain to me why this is happening or how I can prevent it from happening, I wonder if it was because the MP3s had been converted from CDA's but I'm even more puzzled that I get this close effect regardless of the format of the tracks, i.e. whether they are Windows media player format or MP3s. The reason that I want them all to play one after the other is so that I can listen to an entire audio book through the night. I don't have this problem with another audio book which is entirely composed of MP3s. Now I wonder if there is another thing which could play MP3 files under the XP operating system that isn't Windows media player which seems to be doing this irritating trick with me. I'm sorry that this is so long and complicated, but it's hard to explain. Fortunately I have a dictation program which enables me to speak what I want to type rather than type it with one finger with why one remaining hand. The downside of that is that I tend to be a little prolix.