I transferred movies into my android smartphone the kingsing k5 , which is more or less the same as samsug s4 , anyways I would convert my movies into m4 and would put them onto my phones sd card and they would play fine but when it gets to like playing a fourth movie they have not been playing , I thought it was my player but I done a test of the movies it wasn't playing I took out the other movies and like the fourth movie that didn't play after I took out the other 3 movies and put it in it would play. And like my sd card is 32gb , and please be nice with me having a kingsing android smartphone lol , its just been frustrating as I was thinking maybe the movie file or format but the ones that didn't sem to play I would take out the other movies left and put the one that didn't play in alone and it would play , I would deeply appreciate anyone who could shed some light on this and direct me on what I should do , ty.