When a song is downloaded, you purchased the right to the music. This right is no different or differently excerised as the rights to a song you rip from a CD which you own. Being not able to listen to this song on a digital music player is wrong, the intention is clear, using the disguise of DRM to lock in market share. What's the difference between promoting your music device as being closed to obtain market share verses claiming a open system which doesn't look kindly to third party software ? They are worded differently but end exactly the same because they both are pathways for market share, the ultimate destination for any corporation (as well as getting filthy rich).
Re-ripping songs, or Transcoding, destroys sound quality. However, today's music is bloated with the vocal rage, lack of information. excessive clipping to boost preceived loudness, excessive bass. Today's sound is no art, it's engineering, more time is spent on computers "maximizing music" than spent in studio to record better. Take your average rock music from today for example, who would need equipment better than a set of Public Address speakers if the sound was originally produced by those speakers anyway ? Your quality of reproduction can not exceed the quality of the source. I wouldn't be surprised either if your average listeners can't find the difference between transcoded music and properly ripped music. In which case, i ask, why are these music from the music stores worth their money in cents in the first place ?