I have DPS 1.2 installed on an iPhone 4S with iOS 5.01. Was listening to music recently using DPS and experienced a few songs where the audio turned into "static", for lack of a better term. It always happened in the last few bars of a song, never at the beginning or in the middle. I was able to observe what it was doing by looking at the progress slider and, of course, just listening. I tried recreating the problem by replaying the same song, but it always played fine the second time.
Has anyone else had this experience?