RM is a multimedia container format
created by RealNetworks. RealMedia file extension is *.rm.
It is typically used in conjunction with RealVideo and
RealAudio and is popular for streaming content on the
MKV is a common video file defined by
Matroska Media, a new multimedia package format. The feature
of MKV is that it could hold many types of encoded video,
audio and subtitles stream.
To convert rm to mkv file, please install the latest
RealPlayer if Windows has not installed it. Download
RealMedia Splitter. Unzip the file with WinRAR, use the command line "regsvr32 RealMediaSplitter.ax" to register it.
Or download the bat
file to Release folder, register it.
MKV Converter which can
convert rm to mkv file. Then please install
codecs. Select a rm file, set some parameters such as
the video compressor, Microsoft ADPCM as the audio
compressor, adjust the resolution, frame rate etc if
3IVX created by 3ivx Technologies is
the basic coding for MPEG-4. Itís a compression format based
on MPEG4 and quite similar to Xvid or DivX. 3IVX is not free
to create film with 3ivx encoding program, while which could
be freely downloaded and users need not setup Xvid and DivX
decoders again for 3ivx encoding programís being able to
play all formats that supported by MPEG4. Besides, owing to
high compression rate and fine image quality, it also
becomes a quite popular format on network.
To convert 3IVX to mkv, please install
filter. 3ivx is only codec, it can be contained in *.avi,
*.mp4, *.ogm file extension etc. Then convert a 3ivx file
for 3ivx to mkv in the video converter.