If I have read this thread correctly then you are experiencing the same problem I am in regards to burning AVCHD discs using m2ts files that were captured with the pana sd9. The problems are:
Stuttering after a title
Stuttering after photos
Stuttering after transitions.
The issue with SVRT3 I have not fixed as this is beyond my scope.
If I am not mistaken then the problem with stuttering is with "non-clips" in the video track, for eg, photos, colour boards etc. Although I don't understand the why's and wherfores I have found a temporary bandade so try this.
Shoot in the dark for approx 5 seconds, or alternatively a black board,
create your m2ts file with HD Writer, import this black film into PDs video track instead of a colour board then apply your title underneath in the title track. In regrads to your photos you will need to place the black film in the video track and add your photos to the pip track and resize. Your transitions should also now work with no stuttering.
Please have a go and see what you come up with as I am keen to fix this one.
Bob
Windows Vista™ Home Premium
HP Pavilion dv5 Notebook PC
Intel(R) Core(TM)2 Duo CPU P7450 @ Processor: 2.13GHz (2 CPUs), ~2.1GHz
Memory: 3068MB RAM
Card name: NVIDIA GeForce 9200M GS
Panasonic SDC-HD9 AVCHD