Solved-Can't play .mov files in Windows (Live) Movie Maker
Some formats are not played on Windows (Live) Movie Maker and this tutorial will make sure that the user’s issues regarding the .mov format are resolved.
Question: MOV files are not compatible with Windows Movie Maker ?
"I'm trying to edit some clips in Windows Movie Maker, but it doesn't support MOV files, how do I change the files into an acceptable file? Does Windows Movie Maker hold MOV formatted files?"
Small in storage but powerful in function, Windows Movie Maker has gained wide popularity and good reputation for years. Moreover, Movie Maker is probably the only timeline-based editor one desires to edit MOV file with. However, since Windows Movie Maker fails to support MOV file directly, many users may always come across problems whenever they put their MOV videos downloaded from digital camera or online video sites to Windows Movie Maker, the Windows Movie Maker stops working even can'trecognize MOV files. 
So how to make MOV compatible with Windows Movie Maker so that we can load the video files in for editing or playing? To fix the problem, the best bet is to convert MOV to Windows Movie Maker supported file formats like WMV. Actually, it's not as difficult as you imagine. What you need is a just a common video converter like Brorsoft Video Converer. It supports creating high quality WMV video for your Windows Movie Maker, no matter what's the format of your source video files. What's more, it can generates more optimal editing formats/codecs for you to use in different NLE apps, such as Adobe After Effects, Adobe Premiere Pro, Sony Vegas Pro, Pinnacle Studio, Davinci Resolve and more. The guide below will teach you how to convert and import MOV to Windows Movie Maker so you can make engaging movies with MOV, MP4, WMV and other video files. 
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How to convert MOV to WMV for Windows Movie Maker
1. Load MOV files to the program
Launch the program, and open the folder where you have saved the MOV files, and then directly drag the files to the program interface, the files will be loaded to the program immediately. Alternatively, you can click "Add Video" butto to load MOV videos. 
2. Set WMV as the output format
Click the Format and select HD Video -->WMV HD(*.wmv) on the dropdown menu as output format. Of course, WMV from Common Video is also available. If you want to make changes to the video settings like resolution, bit rate and other settings, click the Settings button at bottom. 
3. Convert MOV to Windows Movie Maker compatible WMV format
When everything is ready, click the Convert button and all the imported MOV video files will be converted to WMV format by this MOV to Windows Movie Maker Video Converter.
Tips: To edit MOV video before converting, click the Edit button in the primary window. Brorsoft Video Converter Ultimate includes all regular video editing tools like Rotate, Trim, Crop, Effect, Watermark and Subtitle.
4. Import MOV to Windows Movie Maker
Depending on your version of Windows Movie Maker or Windows Live Movie Maker, the buttons are slightly different:
Import MOV video to Windows Movie Maker: When the conversion complete, open Windows Movie Maker and click "Import" or "Import Video" on the left to import your video to the movie collection and drag and drop to the timeline for editing.
Import MOV video to Windows Live Movie Maker: Start Windows Live Movie Maker and go to "Home" tab in the ribbon menu and click "Add video" in the "Add" panel to locate the converted MP4 video.
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50p to 25p Conversion - A Quick Guide Converting Sony 50P MTS to smooth 25P MP4
Is there a way to interpret the MTS footage at 1080/50p and edit at the frame rate, and then later convert to 25p mp4 and maintain the same cuts for playing?
Source From: How to Convert Sony 50P MTS to 25P MP4 easily
I need to convert files from a Sony camera from 50p MTS to 25p MP4. Because I found there still is no HDD media player support my 1080 50p MTS files well, nor does it appear any HD TV supports it with internal media player. Looking around for any decent tutorials, I’ve finish the Sony 50P MTS to 25P MP4 conversion task.
I've used Brorsoft MTS/M2TS converter to transcode the 1080/50p MTS to 25p MP4 with big success. Overall, this MTS converter is highly compatible with diverse 1080p, 1080i, 720p AVCHD MTS files from Sony as well asCanon, Panasonic, Leica and more. With it, you can fast convert 1080/50p MTS to 25p MP4 with best quality. What's more, it also allows you to transcode MTS to AVI, WMV, MOV, MPG, FLV, etc. various video formats with excellent audio and image quality for using in video editing software like Sony Vegas, Adobe Premiere, Windows Movie Maker, Pinnacle Studio, etc. or playback with multimedia devices like iPhone, iPad, Galaxy Tab, etc.
If you are running on Mac OS X(including El Capitan, Yosemite, Mavericks), you can turn to MTS/M2TS Converter for Mac. 
( Note: Click here for OS X 10.5)
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Guide: Transcoding Sony 50P MTS to 25P MP4
Step 1: Load source files
Launch the best MTS/M2TS Converter. Click the "Add" button on to load your 50p .mts files. If you would like to join MTS files together, just select these files and check the "Merge into one" box. 
Step 2.: Select output format
Click on "Format" bar, and select output format from the drop-down list. H.264 and MPEG-4 encoded MP4 formats are available. For some common portable devices, special output formats are listed for you, such as Android, iPad, iPhone and so on. 
Step 3: Adjust 50p to 25p
Click the "Settings" to set parameters for your devices. You can easily modify the frame rate from 50p to 25p as you need. 
Step 4: Start conversion
Hit the Convert button to start the 1080/50p Sony MTS to 25p MP4 conversion. When it finished, you can get the output videos by clicking Open button. Then it would be free to play, upload and share the videos anywhere you want.
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