We're looking for a new portable video solution for our teen kids for road trips. We've been using a two screen dvd set on the headrests (and we have a ton of dvds that they enjoy rewatching). I want to keep it relatively cheap, too.

I'm considering a couple of the $50 Kindle Fires with an SD card for space. Has anyone watched a movie on one of these? Can anyone offer tips on how to go about ripping DVDs to decent quality MP4s?

thanks!

-jk