I want more space on my memory card for pictures but i have to many songs. I bought the memory stick from my brother so there are a lot of good songs on there, but there are also a lot i don't like. I put the memory card into a adaptor and plug it into my computer. Then i find the file with all the music. Once I find the songs, i try to right click them to delete the songs but the delete option doesn't come up. Please help!