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_90 ( episode_count VARCHAR, dvd_title VARCHAR )

### Question ###
What the episode count for Ben 10: Alien Force Volume 8 on DVD?

### Accurate SQL ###

SELECT episode_count FROM table_name_90 WHERE dvd_title = "ben 10: alien force volume 8"