what the diffent between snake fist fighter and ten fingers of death

they both have jackie beating up the gang on the docks and the master comes down and challanges jackie and then he fights fatty from magnificent butcher and the master blindfolded. but snake fist fighter is 1 hour and 21 mins its on vhs from company name simitar and the ten fingers of death is 1 hour and 18 mins on dvd from company name mill creek entertainment. so why is one longer than the other