[noteryk]

I used pt save a copy and it worked! I also did check copy all audio files and plug-in settings. Before I opened the sessions I compared the audio files from the different folders. The audio folder from the save a copy session had a lot more audio files compared to the other session I just dragged from one drive to the other. Although there were still some files that did'nt appear in the save a copy folder, all the tracks had waveform and sound. Not really sure why it copies some files and not others...but atleast i can hear everything on my sessions now.
Thanx dave911