Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_41 (format VARCHAR, catalog VARCHAR, date VARCHAR)

### Question ###
What is the Format of the September 22, 2008 release with Catalog number RTRADCD491?

### Accurate SQL ###

SELECT format FROM table_name_41 WHERE catalog = "rtradcd491" AND date = "september 22, 2008"