Hi, I have checked and the track numbers are padded with 0s 01,01,03 etc. I have tried on original mp3 encoded by freerip from 10 years ago and no problem at all. On the properties tab in windows explorer the tracks are numbered 1,2,3 in both the musicbee encoded and the freerip encoded.. albums. I am going to try to convert from mp3 to mp3 at a different bit rate with music bee and see what happens.