I have done this, (yesterday) based on the suggestion from early threads. with no improvement. Could there be a sequence of events leading to the final file that is involved? (Using 1 yr old Mac book air) internal HD, USB3,180 gb available space, 4gb 1600 Mhz DDR3 memory, 1.4 GHz Intel core i5 processer.)
1. Click "Record" (25 minutes in this test))
2. click "Stop"
3. Click "Finish" (file goes into "flattening") for a minute or so, then says: "Video sucessfully saved to ...."
4. opening THAT file generates "converting." In this particualr test, that took 1h 38 minutes!!!!) Is that normal?
5.Playing back the file (on the same Mac hard drive) shows good video, good audio , but sync deteriorating as it plays.
The end product is therefore useless.
To get around this is to make short (10-15 minutes) recordings, with many files (think 12 files for a 2 hr tape) x 55 tapes= 660 files! Not going to happen. Thank you for your response, and additional help will be most appreciated.