Can't find CDs, grrrr

I have lost my little case of music CDs, I've looked around for it, but it seems to have got into a box or drawer somewhere I suppose and I just can not find it. Very frustrating since I would like to listen to one of the CDs in it and that is the only sort of music that I am interested in hearing. Hate it when I am in a mood for a specific type of music and can't find the right CD.