CREATE TABLE table_74840 ("Region" TEXT, "Date" TEXT, "Label" TEXT, "Format" TEXT, "Catalog" TEXT)

Which Format has a Date of may 24, 2008?
SELECT "Format" FROM table_74840 WHERE "Date" = 'may 24, 2008'
SELECT "Format" FROM "table_74840" WHERE "Date" = 'may 24, 2008'