This morning, Flash memory maker SanDisk announced slotMusic, a new way for musicians to sell DRM-free tunes: on microSD cards. Each 1GB card will play back music at up to 320 kilobytes per second and carry music from EMI Music, Sony BMG, Universal Music Group, and Warner Music Group artists, along with whatever video and other media the artists choose; users can also save other files to any leftover space on the cards. (In fact, this looks a lot like this free promotional microSD card we wrote about in March; that must have been well received.)

The cards can slot right into your music player of choice; they'll also be shipped with a USB sleeve, so they'll work with any Windows, Linux and Mac computers. We don't know pricing, which albums will be sold (though a SanDisk rep hinted that Akon is expected to release on microSD), and when, as yet, but look for them to arrive before the holidays, at U.S. stores including Best Buy and Wal-Mart, and after that in Europe.