You may notice that the files causing the problem are duplicates of the actual digital downloads, but their file names all have “._” at the beginning and their file size is tiny. In this screenshot example, you can see “._MyValentine_Holl-H.MP4” as well as “MyValentine_Holl-H.MP4”. Everything looks normal, but once you plug your storage device in, the files in your playlist won’t play! What gives? This can be a frustrating issue, but there is nothing to worry about. Let’s say you’ve copied your downloads to a USB flash drive or SD card using your Mac computer. Why won't my decorations play on my projector/TV/media player after I downloaded on a Mac?ĭecorators using digital downloads on a Mac computer may run into a strange but easy-to-solve technical glitch.