There exists an issues with timecode and the AVCHD specification in the HMC line - maybe other cameras too. There are a handful of posts out there about the problem and involve a range of editing applications.
I am working with Panasonic to solve the problem, but without others piping in with "Yea, mine does that too," they will not see it as a large enough issue to resolve.
If you have an HMC-150 or -40, or other AVCHD camera, please let me know if you are experiencing this simple symptom.
- Each of the AVCHD files recorded on the HMC-150 or HMC-40 and brought into an editing application, show a starting timecode of zero (00:00:00;00)
For all following this post, Sony hasn't dropped the ball and is forwarding to development:
Thank you for your patience. I would just like to let you know that, since I am reproducing the issue here, I am going to be sending this issue off to our development team. They will look into the issue and offer solutions if available. If not, the issue will be bugged. I will update you once I hear back from them.