I don't think so. You can watch Sonic X on YouTube or you can search for torrents.

you can whatch sonic x on www.4kids.com but not in spanish

Just make a search for sonic x episodes you want to download - say a song,or software,ebook,movie etc. You will find the links of webpages from where they can be downloaded. To further narrow down search, just click on the relevant category on search page
http://downloadanystuff.org/