I have the 4GB Sansa with a 32GB microSD card. Currently there are just over 5,000 tracks (450 on the Sansa, 4550+ on the SD). I have a playlist containing all tracks in the /playlists folder, titled MUSIC.m3u8. (It's neatly alphabetized and everything, the result of a long weekend of shuffling lines in Notepad.) Until recently, adding tracks was a simple matter of copy/paste to the SD card -- the Sansa itself is within 400 MB of full -- and adding the track names to MUSIC, then updating the database in the background. This apparently no longer works -- the "X of Y" indicator on WPS never increments Y -- so I must assume that I changed a setting that I shouldn't have. (There's about 3.5 GB left on SD, so I don't think it's a space issue.) Max database size is set to 7,000. Suggestions are welcomed.