Does Windows- 7 already have something that would convert .m4v
to .mp4
?
If not, how would I do that?
In most cases, it's easy enough to just rename your file from .m4v
to .mp4
. There is no conversion needed.
Both .m4v
and .mp4
can be used as extensions for the MPEG-4 Part 14 container format. While .m4v
isn't used that often, .m4a
is common for audio-only files.
There are two cases in which renaming does not work:
Sometimes, .m4v
is also used as an extension for raw MPEG-4 Part 2 video bitstreams. In this case, renaming is not possible. The file has to be multiplexed into an .mp4
container instead. This can be done, for example, with ffmpeg: ffmpeg -i input.m4v -c copy output.mp4
When they originate from iTunes, .m4v
files may be protected by Apple's DRM. In this case, renaming to .mp4
is not possible, and you cannot convert the file itself either, as it is copyright-protected and can only be played with iTunes on the machine it was bought on.
In either case, it is not necessary to convert the file by re-encoding it. This would only deteriorate the video quality. It is certainly not necessary to buy some kind of video conversion software for this task either.
m4a
for audio.
.m4a
. The iPhone uses .m4r
for ringtones, for example.
m4v
and mp4
are not necessarily the same thing at all: an m4v
file can be a pure data stream for burning directly to disc, without any metadata. In such cases, the file needs to be packed in an mp4 container before it can be played as file in a software video player. Even in 2016, this affects people why use, for instance, Adobe Media Encoder.
May 9, 2016 at 5:59
Leawo total media converter, or maybe AVS Video converter
They are both paid, but have free versions
You can check this convertor out WinxHD, it's not free but you can easily work your way round and it facilitates m4v to mp4 or vice versa.
Hope I helped.
Enjoy :)