For those of you out there who are fortunate enough to own a very cheap and excellent Playbook Tablet, you may want to convert some MKV files to watch. The quality of the Playbook is superb, but the screen size means that you need to down-convert.
Grab yourself a copy of Handbrake from http://handbrake.fr/ (it’s free and opensource, based on FFMpeg) and then download Handbrake Playbook Settings from here. Import that in to your settings and you can now convert next to every video type known to man and drop on to your Playbook to watch.