I've had some weird records with shaped, ones that have reverse grooves (start on the label, with the needle falling off the outside of the record when it's done more often than not) 5"... all pretty much impossible to play on any automatic turntables. My favorite is still my copy of "Yes L.A." which is a clear single sided 12" with the blank side having a 2 color screenprint graphic as a ghetto version of picture disc.