Will someone please help before I have a nervous breakdown. I have writtren some video to a JVC dvd-r 1-8x disk. Sometimes when I put it in the MV dvd player it plays fine but other times it comes up no disk. More often than not no disk. I have to take it put and put in in and take it out and so on until it eventually will play. The dvd player supports dvd-r as its on the front of the player. Why does it do this? My brother sends me dvd-r's that are write speed 1-4x and they play fine. So after buying 5 dvd+r's that didn't play and 10 dvd-r's 1-8x that work sometimes shoud I go and buy some dvd-r's 1-4x ?? Will these play?

Please help before I start banging my head on a hard wall !!!!