Usb Card Reader Writer I Have A Problem With My USB SD Card Reader/writer!!! Please Help!!?

I have a problem with my USB SD card reader/writer!!! Please help!!? - usb card reader writer

I bought an SD card reader / writer drive. I wanted to put a few songs on my card, so I bought it. When you log in, read the card but not write about it, which means that I can see the files already on the card, but let me not add on files.

Can someone help me and see what is the problem?

Incidentally, the brand and model:
Tesco USB 2.0 SD / MMC Card Reader