Help me please! Absolutely new to DVD's. Have just taken delivery of a JVC DR-MV1. I purchased a pack of 25 DVD-R which are marked 'Datewrite x8 4.7GB DVD-R'. Having copied some family video I have found that despite trying 4 different players no picture was visible although it was on the JVC. I have scoured the Forums but cannot find anything which will assist me in choosing the correct disc. I have recorded on a 'Memorex 1x-4x DVD-R and found that this played on all four players. I have noted that the 'Memorex' also has marked on it 'Video 120'. May someone kindly give me some guidance on the correct disc type please. Very many thanks.