CREATE TABLE table_17194 ("DVD Name" TEXT, "Released" TEXT, "Audio" TEXT, "Aspect Ratio" TEXT, "Duration" TEXT, "Number of Episodes" FLOAT, "Num of Discs" FLOAT)

What is the total number of discs where the run time was 4 hours 40 minutes?
SELECT COUNT("Num of Discs") FROM table_17194 WHERE "Duration" = '4 hours 40 minutes'
SELECT COUNT("Num of Discs") FROM "table_17194" WHERE "Duration" = '4 hours 40 minutes'