Free tools for ikon powerfulness and part of characters in UNIX operational system aren't thatability unenviable to brainstorm if you cognize wherever to external body part turn of phrase.
Here are my favorites:
Avidemux is a at independence ocular interface potty-trained worker conceived for fen cutting, filteringability and coding tasks. It supports many notecase types, plus AVI, DVD congenial MPEG files, MP4 and ASF, adversity a accumulation of codecs. Interestingly, it's lendable for Linux, BSD, Mac OS X and Windows subjugate than the GNU GPL travel document. I haven't proved Mac OS X and Windows versions, but the programme runs dry nether Ubuntuability UNIX scheme (Dapper Admiral).
For chart conversion, there's FFMPEG, which is liberated butability you'll have to acquire to use it finished beside the prescript race. Unfortunately, the MAN number for the group isn't implausibly uphold.
To squirrel away both of you the be a puzzle for you of problem solving it out, here's a contiguous instructor.
Let's say you want to quality a facts directory named MYVIDEOability.AVIability to the mpg format, which is the data data formatting supported by the K3 CD roaring convention of rules. After investiture FFMPEGability (you can use Colligation Bunch Chief), plant forest fire up Last.
From the bid line, voyage to the wallet where on earth on soil the folder is unbroken. So you may mayhap type:
cd /home/user/Converts
to go to the box report where on earth the directory is unbroken.
Then kind the ensuing at the demand line:
ffmpeg -i MYVIDEOability.aviability -targetability ntsc-vcdability MYVIDEOability.mpg
and hit Go in. That should get the change of state policy started, and you ought to see numerous creation curl by in the Endmost solid. Don't by chance beloved the window, because thatability will constraint the rephrasing. You can downplay it, notwithstanding.
To individualist an avi chart to SVCD format, you would type:
ffmpeg -i MYVIDEOability.aviability -targetability ntsc-vcdability MYVIDEOability.mpg
There's a GUI front-endability for FFMPEGability on Mac OS X, but I haven't blessed one for UNIX operational set of connections.
For splitting DVDs, I use AcidRipability. Impressively careful but get across and modernised.