slotMusic was a type of microSD memory card developed by SanDisk preloaded with music in MP3 format. They were first available at Wal-Mart and Best Buy stores in the United States in October 2008. The current selection of songs comes from Universal Music Group, Sony BMG, Warner Music Group and EMI Music. As of mid-2011, SanDisk's website lists a total of 14 albums available in the SlotMusic format.
SlotMusic albums may also include high-quality images and videos in multiple formats. The contents of each microSD card may be altered by the user, enabling them to add or remove files from the slotMusic card as desired. Another type of card, slotRadio, has been developed for 2009 and has radiolike controls. SlotRadio has more restrictions on how it works, such as not being able to backtrack to a previous song.
- Maney, Kevin (2008-09-22). "SanDisk's New SlotMusic: But Why?". Portfolio.com. Retrieved 2008-12-02.
- ""slotMusic": High Quality, DRM-Free MP3 Music on microSD Cards" (Press release). SanDisk. 2008-09-22. Retrieved 2008-12-02.
- "slotMusic Cards Now Shipping: More Than 40 Top Artists Available from Nearly Every Genre of Music" (Press release). SanDisk. 2008-10-15. Retrieved 2008-12-16.