What is the difference between the SoundBridge M1000 and the M500?
The difference is the display technology. The M1000 has a bitmapped “vacuum fluorescent display” (VFD) which has two font sizes and more options for graphics and music visualization. The M500 has a backlit “liquid crystal display” (LCD) which displays 40 characters on each of two lines. This display is not quite as bright as the VFD, and a little slower to update, so graphical effects look a bit less impressive. Still, it’s plenty bright and clear for basic browsing and playback functions. For more information, see this page.