For whatever reason if you have problems importing Leica V-Lux (Typ 114) AVCHD mts files into Final Cut Pro X for further editing, we would suggest making new Apple ProRes QuickTime media that is FCP X friendly before you start post production.
“My FCP X no longer working with Leica V-Lux (Typ 114) AVCHD mts files. Why did this happen? Just upgraded to the latest High Sierra, and can no longer access .MTS files on my desktop through Final Cut Pro X. Is there anything I can do to solve the issue? Please help.”
Actually, this is a known issue between AVCHD and FCP X on High Sierra. It can be solved via transcoding Leica V-Lux (Typ 114) AVCHD mts files into FCP X preferred ProRes codec. Check a how-to guide on this below.
To transcode Leica V-Lux (Typ 114) AVCHD footage to ProRes for FCP X, do as below:
Step 1: Import Leica V-Lux (Typ 114) AVCHD mts files.
Start up Video Converter for Mac and click “Add File” to load Leica V-Lux (Typ 114) AVCHD video files that you need to convert into this program. This converter supports batch conversion, so you can import a bundle of Leica V-Lux (Typ 114) AVCHD video files into it to do conversion at a time.
Step 2: Choose output format for FCP X from “Profile” list
Working well as an Leica V-Lux (Typ 114) AVCHD converter app, Video Converter for Mac comes with a flavor of Apple ProRes codecs , including Apple ProRes 422, Apple ProRes 422 (HQ), Apple ProRes 422 (LT), Apple ProRes 422 (Proxy) and Apple ProRes 4444. For a good balance between quality and file size, we would recommend choosing “Apple ProRes 422 (*.mov)” as output format under “Final Cut Pro” column. The ProRes 422 codec will ensure a good performance working in FCP X even on an old Mac machine.
If necessary, you can click “Settings” button to modify video and audio parameters like encoder, resolution, frame rate, bitrate, aspect ratio, sample rate, and audio channels. You can also “Enable 3D Settings” to add 3D effect to your source media.
Step 3: Start Leica V-Lux (Typ 114) AVCHD MTS to FCP X conversion.
Click “Convert” to start Leica V-Lux (Typ 114) AVCHD mts video to ProRes 422 conversion for FCP X. As soon as the conversion is complete, you can click “Open Folder” to get the generated Apple ProRes 422 files for editing in FCP X with optimum performance. Hope it helps.