Paramount Pictures, which have released many top tier movies on both HD formats up to now, has decided to call it quits on their Blu-ray content and to only put out HD DVD flicks from now on. By switching back to HD DVD exclusivity, the company has ensured that big holiday releases such as Transformers and Blades of Glory will only come out on HD DVD discs at the end of this year. It isn’t just the Paramount branded movies which will only see HD DVD releases from now on though, as Dreamworks Animation movies will be coming to HD DVD alone as well. This means that movies like Shrek the Third will only be available on the red format this holiday season as well.