Dê uma olhada no GeeXboX que é uma distribuição Linux centrada na mídia.
GeeXboX, a small media center Linux live CD distribution, can run from any small device, such as a USB disk or a wallet CD-R, and can play both disk-based media like DVDs and online media like Icecast streams. The project has been in development for several years and has just released version 1.1. I fed it every kind of media file I could lay my hands on -- Ogg, MP3, MP4, AVI, DVDs, VCDs, and their ripped versions -- and it played them all without a hiccup. But what makes GeeXBoX a fantastic distribution is its ease of use and malleability.
GeeXBoX 1.1 is a mere 8.9MB ISO download. Its hardware requirements are minimal -- a Pentium II 400MHz processor and 64MB of RAM are enough to power GeeXBoX -- and of course you'll need a CD/DVD drive to play your media. GeeXBoX ejects its CD boot media after copying itself into memory and booting the computer. If you don't want to bother with the GeeXBoX CD every time you want to power up your media center, you can install GeeXBoX onto a hard drive as well. To install GeeXBoX you need only an 8MB partition, and it can install in a Windows FAT partition as well as Linux ext2/3 partitions. If you don't have a hard disk on the computer you want to run GeeXBoX on, you can install the distribution onto a USB disk.
GeeXBoX boots quickly into a simple graphical environment. The first screen displays controls to open and play media files, change preferences (for audio/video playback, displaying subtitles, and so on), and configure some options (such as a sleep timer and autoplay mode). The developers have done a good job of making the distribution as easy to use as a regular DVD player. Unless you're really picky about the font size of your subtitles, you'll be happy with the default settings.