Using Toast 14, I have burned 3 different disks. One BluRay, One high def., and one standard dvd. All three play fine on my Samsung BluRay player. Took them to a friend and his Sony BluRay player will not read any of them. BluRay disk is Verbatim, and standard disks are Memorex. Both players are about 7 years old, and were good ones when purchased. The Sony player has no problem playing purchased BluRay movies. I make videos for people and use both quick movie and MP4 formats. Both play fine on the Samsung, Movies are created using iMovie on iMac, and then loaded into the Toast 14 program.