I burned a music CD and everything went just fine the first time, every song played. I went to make a second CD using one of the same songs, only this time it won't play. What could the problem be? I used the same music file and the same type of CD each time. I am using Memorex CD-R's and stop running processes before burning each time (including AV and firewall). I also stand half a mile away in order to avoid buffer underruns. I am using Windows XP Home, if that makes any difference, and Record Now burning software.

Any help would be greatly appreciated.