Many Final Cut Pro (mainly FCP X and FCP 7) users found they could not import any AVCHD files into FCP anymore – only getting “no compatible file” message, below is what some folks said:
I use FCP 7 and my AVCHD file is shown as a package, not a folder. I tried to log and transfer the AVCHD file to FCP but it did not work. I think FCP does not find the files. I also tryed to click myself to the files by right clicking the file and then opening the package with “show package contents”. Once I clicked myself to the actual .mts file I tried to drag it into the log and transfer window in FCP. But this did not work – I’m using OS X 10.8 Mountain Lion.
I could not import any avchd files anymore into fcp on my mac after I installed mountain lion.
As far as I know, to solve these problems, you’ve got to convert your AVCHD files first to ProRes 422 files and then import them into the Final Cut Pro 7 or FCP X. It’s a bit workaround but it works. There are several apps for converting AVCHD files to ProRes mov for FCP on Mac Mountaion Lion. I’m currently using Pavtube HD Video Converter for Mac which can be used as top AVCHD MTS/M2TS Converter on Mac OS X Leopard (10.5), Snow Leopard (10.6), Lion (10.7), Mountain Lion (10.8). It costs $35, but it’s clean and easy to use. I usually convert my files into apple prores 422 to work on fcp and the software was the best converter to do this. I tried several otheres but liked the pavtube the best.
The software works like most other Converters I’ve used. Drag and drop the AVCHD .mts or m2ts files into Pavtube, choose ProRes 422 as output profile, just follow: Format > Final Cut Pro > Apple ProRes 422 (*.mov), and then start the conversion. You can refer to a detailed guide here – converting AVCHD to ProRes 422 for Final Cut Pro.
Note: If you are also a FCP X user, before you try to do the conversion, don’t forget to make sure that you have installed the Apple ProRes Codec manually since the FCP X asks users to install it by themselves.
Not an FCP user? Converter also supports other video formats like Apple Intermediate Codec (AIC) (*.mov), AVI, WMV etc, so you should be able to create files compatible with iMovie, Final Cut Express, Adobe Premieree and more similar video editing software.
Under Mac Mountain Lion, you can use the Log & Transfer function to smoothly bring encoded AVCHD footage into Final Cut Pro 7 or FCP X. I don’t think it could get much simpler (unless of course, Apple provides native support for AVCHD importing on Mac 10.8).