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_22557 ( "Date" real, "Single" text, "Backed with" text, "Record label" text, "Format" text, "Other details" text )

### Question ###
What format for the release that had 2000 copies?

### Accurate SQL ###

SELECT "Format" FROM table_22557 WHERE "Other details" = '2000 copies'