CREATE TABLE table_28057 ("Release" CLOB, "# of discs" FLOAT, "Region 1" CLOB, "Region 2" CLOB, "Region 4" CLOB)

Which release had 6 DVDs?
SELECT "Release" FROM table_28057 WHERE "# of discs" = '6'
SELECT "Release" FROM "table_28057" WHERE "# of discs" = '6'