that is probably not true lag but some sort of loading and memory acess what i was refering on my first post is that SD cards are confirmed to do stutering on alot of videos on random games in general not when reloading the video but when playing them for the first time wich is alot diferent from the issue your describing,lots of cutscenes on alot of games stuter if you use an sd card all on the first watch wich includes like mkdd intro video.Only repeat intro video.