Saving Power with Linux

An interesting site with numerous tips and tricks on power efficient computing using Linux:

LessWatts

It is also home to the rather useful "PowerTOP" tool. If the testimonials are anything to go by, everyone running a recent release of Linux should give this a try.

Embedded multimedia in LateX/Prosper

The movie15 package by Alexander Grahn is useful for this purpose. The movies embedded, however, cannot be viewed with any PDF reader on Linux.

Extracting Audio/Video

It's really easy to extract either audio or video from a multimedia file using 'ffmpeg'. To extract audio only:

$ ffmpeg -i inputfile -vn -acodec copy outputfile

And for video only, replace '-vn' with '-an' and '-acodec' with '-vcodec'.

ffmpeg is also commonly used as a transcoding tool.