please help me with new sony dvd +/- r/rw

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plaese can someone help me, i have just bought a sony dvd writer, i am trying to read the disc with my samsung dvd rom drive, i have made the sony the master and samsung the slave but when trying to copy on the fly i get the message-:
'samsung332b is not compatable with clone cd read sub channel data from data tracks' when i un check the sub chan data box i get the mess 'not comp with clonecd read mode normal'also it is saying there is not enough space on the dest disc when the game is only about 3.7 gig i am using 4.7gig discs, please help i'm getting a little bit miffed now, thanx in advance