I came from CS5.5 with no problems of exporting my files MPEG2 or MPEG4 (.m2v & .avc) both were under 20gb. Once I pull it in to Encore with the .ac3 files, It says "untranscoded" and I wait for about 30 minutes and no change. Usually I would get a percentage in CS5.5 and once it reaches 100% I am able to burn it.
Does anyone know if I have to go into preferences to change something? Thank you in advance