Q: I have some .m4v files and I'd like to remove some unnecessary fragments and then merge them together. Can someone tell me what the best way is to join m4v files without reencoding? - Gary from Quora

Like Gary said above, many of you may want to slice off unwanted parts and merge the M4V files to form a new one, so that you can play them perfectly. More importantly, if you don't want any original video quality loss, you'd better use a professional video editor tool. Here, Joyoshare Media Cutter may be your best choice. In this guide, we are going to show you the simplest way to merge M4V files without quality loss by using Joyoshare Media Cutter on Windows or Mac.

Part 1. Easy-to-Use M4V Joiner: Joyoshare Media Cutter

Joyoshare Media Cutter is one of the best M4V mergers in the market so far. It is capable of cutting and joining M4V files at a super fast speed without compromising the original video quality. It clear interface and simple buttons makes it easy to operate for anyone whether he/she has experience or not in the video editing field.

Besides M4V, Joyoshare Media Cutter also supports tons of other media files such as MP4, AVI, MPEG, MOV, 3GP, VOB, WMV, MKV, ASF, RM, DV, OGV, etc. After that, you can also export the new video file onto various portable devices like Apple iPhone, Samsung Galaxy, Xbox, PS4, smart TV, etc. It's worth mentioning that this program offers some other video editing features like trimming, cropping, rotating, adding subtitles, inserting watermarks, applying special effects, etc.

Why Choose Joyoshare Media Cutter:

Merge M4V files without quality loss

Cut off unwanted parts easily

Support plenty of media files formats and devices

Customize video parameters like codecs, resolution, etc.

Available for both Windows 10 and Macos 10.14

Part 2. Complete Instruction to Combine M4V Files with Joyoshare

Step 1 Launch Joyoshare and import target M4V file

At first, you need to download Joyoshare Media Cutter and install it on your PC or Mac. After that, simply open it. Next click the "Open" button to browser the local folder and add the target file to the program. Or, you can just drag and drop it to the main interface.
main screen
Note: Joyoshare Media Cutter doesn't support batch conversion, so you can only import one M4V file at a time

Step 2 Cut off useless parts

Now you can simply drag the yellow slider to decide the start time and end time for the M4V file; click the "+" button to add another same M4V file and keep the wanted part by using the same way. Another one more clip if needed. All the unwanted parts such as trailer, blank content, noise, etc. will be removed after it's done.
merge videos

Step 3 Select an output mode

Next click the "Format" button to choose an output mode. It's highly recommended to choose the "High-speed mode" if you only slice off some bits and merge the rest which will keep 100% original quality; if you have made some other editing or change the frame rate, codecs, etc., you'd better select the "Encoding mode".
output formats

Step 4 Start to join M4V files

Tick the "Merge Segments" option and then click the "Start" button to let Joyoshare start to cut and merge. A few seconds later, all the video segments you want will be merged together to form a new one and all the parts you don't want will be sliced off.

Note: Joyoshare Media Cutter can only allow you to merge the M4V video clips from the same source. If you have M4V files with different basic specs (resolution, h.264), we suggest you to try Joyoshare Video Converter, an easy-to-use yet professional video converting and editing tool.