Sonic X Complete Series contains episodes 1-78 of the anime directed by Hajime Kamegami in standard definition on two blu-ray discs.

In a race to win it all, bet on the hedgehog!
ALL YOU HAVE TO DO IS FIND YOUR SONIC DRIVE!

Once again, the villainous Doctor Eggman has gathered the seven Chaos Emeralds for his latest dastardly scheme. And right on cue, like a bolt from the blue, Sonic (the quickest hedgehog around) arrives to save the day! But when Chaos Control is triggered by accident, Sonic and his friends—Tails, Knuckles, Amy, and the rest—are all catapulted to another world. This world is strangely different from their own, and our heroes don’t know how to get back home! To make matters worse, Eggman and his sinister allies are stuck in this new location right along with them. To make it back to their world, our supersonic heroes will have to make tracks to hunt down the Chaos Emeralds before Doctor Eggman, who will stop at nothing to conquer this exotic new land for his evil Eggman Empire. The race is on, and Sonic’s gotta go fast! Make time for relaxation, ‘cause Sonic X is out of this world!
Special Features: OPs, EDs, Storyboards, Commercial, Pilots, and for the first time all 78 episodes in Japanese with Subtitles