saving downloaded music in Windows Media

[godfrey]

Forgive me if this a old subject. I am new to this music download world. I was recently recommended Limewire and down loaded a lot of songs. I saved them in the Limewire library, then sent them to My Music on Windows. I then transferred them to Windows Media and added them to the Library therein. Quite happily listening to the first batch, I thought I'd down load another lot of music, so cleared the Limewire library (saved files) in preparation to making a new library. I then found that the songs that I had saved in my Windows Media library would not play. I must admit to being a bit of a dinosaur where computers are concerned. Perhaps you would takle pity on an old man and point out where I have gone wrong?