CREATE TABLE table_17191 ("DVD Name" TEXT, "Released" TEXT, "Audio" TEXT, "Aspect Ratio" TEXT, "Duration" TEXT, "Number of Episodes" FLOAT, "Num of Discs" FLOAT)

What is the aspect ratio of the DVD released on 12/10/2009?
SELECT "Aspect Ratio" FROM table_17191 WHERE "Released" = '12/10/2009'
SELECT "Aspect Ratio" FROM "table_17191" WHERE "Released" = '12/10/2009'