To assist further, please provide the following information:
1. What are you trying to do or accomplish?
2. Are you trying to copy the music from RealPlayer library to your SD card?
3. What happens when try to connect your SD card?
4. If possible, can you send us a screenshot? (Refer this link: https://customer.real.com/hc/en-us/articles/204039473)
5. • What version of RealTimes or RealPlayer is installed? (See https://customer.real.com/hc/en-us/articles/204039513)
6 • What is the operating system of your computer (Windows XP, Vista, 7, 8, 8.1, 10)?
The more specific you are, the better I will be able to assist you.