Hi guys, hope your all well and happy,i know this is a pain in the (_!_) but i did use the search option first,but came up with things way off mark....a bit of a hard one to search for. I have uploaded some mp4 on to my D500 and had a listen etc as you do,now i do remember reading somewhere that if you do send a mp3/4 to your playlist,then it wont delete. Now i am possitive that i did not,after all it was a song for my mate who has no pc,i blutoothed it to him,and a just cant face the days ahead knowing that at anytime it could shuffle... and i could end up listening to ...... simon and garfunkel