hairy_hen said:
The disappointed annoyance I feel whenever I watch any movie with an opening logo that obviously did not exist at the time the movie was actually made can scarcely be quantified.
It's one thing when it's a clean replacement/addition to what was already there. For example, the 2008 Paramount logo on the Godfather blu-ray doesn't bother me in the slightest since the movie doesn't really "begin" until you hear Nino Rota's score and see the opening credits.
But in the example of Toy Story you're hearing the music from the get-go, not to mention seeing a version of the logo unique to that film (at least it was at the time). I can't fathom why someone would decide to completely delete all of that.