sony dsc tx10 AVCHD import to iMovie mts files intermittent
I have found many topics on this subject but none which answer my current problem.
Setup : MBP 10.7.5 / iMovie 11 - 9.0.8 (1778) and a Sony DSC TX10 camera connecting by Sony USB Cable.
When I connect the camera I can see several drives mount : 2 called no name and 1 PMBPortable. Lets ignore PMBPortable and the No Name for DCIM photos and only concentrate on the one which contains the PRIVATE->AVCHD folder.
I cannot simply connect the camera, open iMovie and the movies import automatically. While I have been able to import these MTS movies to iMovie in the past just by connecting the camera, no matter how many different ways of power up camera, open iMovie etc I try now, I still cannot see the camera in "import from camera"- iSight only. iPhoto works but doesnt discover the movies either, and I am sure in the past it has found them and created iMovie or Aperture links.
THIS HAS WORKED BEFORE INTERMITTENTLY BUT NOT ANYMORE......
I have tried :
1. Recreating the PRIVATE->AVCHD->STREAM folder containing the MTS files on another USB : no result
2. Connecting the camera, turn on the camera (mounts folders) open iMovie, drives mount but with little yellow ⚠ : import : no result
3. Reboot with camera connected, open iMovie,drives mount as above : no result
4. Copy the PRIVATE (->AVCHD etc) folder to my HD, reformat the card in the camera, connect to MBP, open iMovie , drives mount : no result
5. Copy the PRIVATE (->AVCHD etc.) folder intact back to the camera, power down,*(camera came up with msg inconsistencies in database and repaired them, whatever they were) reconnect camera, power up, drive mounts, open iMovie, only sees PMBPortable : no result
6. As above, power down camera, power back up, PMBPortable and No Name mount, open iMovie : no result
All the MTS files on the PRIVATE->AVCHD->BDMV->STREAM folder play on VLC no problem, but will not play with quicktime.
I have tried so many combinations now I am getting frustrated : I have seen this setup on this macbook work as recently as a few weeks ago.
Any ideas what I can try to solve this would be most welcome.
MacBook Pro, Mac OS X (10.7.5)