There are a plethora of formats out there and often you need a simple compressed format to move things around.
By Jedi787plus at en.wikipedia [GFDL or CC-BY-SA-3.0], from Wikimedia Commons
I don’t know if there is an easier solution (please share if you know one) –
# Recent Edit – Try this tool before proceeding – http://www.noobslab.com/2013/09/curlew-multi-converter-01203-version.html
To convert the DVD into a compact format you can use devede –
http://news.softpedia.com/news/How-to-convert-AVI-to-DVD-54418.shtml # The link shows how to convert AVI to DVD.
To do vice versa – DVD to AVI –
1. Install devede –
$ sudo apt-get install devede # works on Ubuntu
2. Run devede –
$ devede &
3. Select the Divx / MPEG -4 option
4. Add the DVD videos of interest
Click on Add below
Choose the .VOB files of interest (I think it allows only one at a time)
When done with the addition –
3. Choose the appropriate media size & click on ‘Adjust disc usage’ button
4. Click Foward
5. Quit when done
6. You will get a .avi file for each .VOB file. You can join them into one in the destination folder using –
$ mencoder -oac copy -ovc copy movie_01.avi movie_02.avi movie_03.avi -o WholeMovie.avi
There should be an easier way to do this!
Combine multiple .mp4 files together using –
MP4Box -add file1.mp4 -cat file2.mp4 -cat file3.mp4 practice.mp4
To reduce the size of a file you could use –
ffmpeg -i input -vf scale=iw/2:-1 output
Where IW = Video Input Width.
Scale = Parameter to scale to. In this case you are dividing the original size by 2 (iw/2) you could use 4 in place of 2 or 3 as you desire