Lucas Wills | TAS - Super Mario World "0 exit" in 42.64 seconds @LucasWills | Uploaded 5 years ago | Updated 1 hour ago
Frame Count - 2,563 [42.647 seconds]
Rerecord count - 9,792
Category - 0 Exit / Credits Warp / Game End Glitch
RTA Timing - 34.763 seconds

You can find a technical explanation as well as a 0.8 second faster movie here: http://tasvideos.org/4797S.html