"Hi - I'm sure someone's figured this out but....imovie 09 doesn't allow import of my video from my Sony HDR CX500v - I can see the video in the .mts files in the stream folder, but they're grayed out. So someone please tell me, what am I doing wrong?" ------ Apple Discussion
There is nothing wrong with wrong, due to different versions of iMovie, your AVCHD videos may not be supported although iMovie is support for AVCHD support. Then, you'd better get a professional Video Converter for Mac to help you convert AVCHD videos to iMovie editable videos.
Here comes AVCHD to iMovie Converter which can help you convert AVCHD videos from different brands of camcorders like Sony, Canon, Panasonic, JVC etc to iMovie (all versions of iMovie supported) supported videos on Mac (including Mac 10.9 Mavericks)
Step by step to convert AVCHD to iMovie
Step 1: Load AVCHD videos
Drag and drop AVCHD files to AVCHD to iMovie Converter. Or go to "File"menu, choose "Load Media Files" to locate AVCHD files you want to load. If you want to save time and energy, you can apply batch conversion by adding several files at one time.
Step 2: Select iMovie as output format
AVCHD to iMovie Converter will automatically set the format, resolution and frame rate for you, maintaining the video quality, and the output video can be imported to iMovie 11/iMovie 09/iMovie 08/iMovie HD.
Step 3: Convert AVCHD to iMovie
Click "Convert" to start converting AVCHD files to iMovie