I have the same problem with my sony and have been able to get it to work by changing my capture preferences:
Go to the Menu button (upper left corner)and then under /edit/preferences/capture/
Under “Auto Scene Detection”, check “do not detect scenes during capture”
Under the DV parameters button
“DV Auto Stop” turn off or uncheck the 2 options:
Stop scanning DV tape automatically when there is a long blank interval on the tape
Stop capturing automatically when there is a long blank interval on the tape.
I find Power Director will capture under these preferences and you just have to manually start and stop the capture.
Good luck.