<|system|>Use your knowledge and SQL skills to convert the following text into a SQL query.
Think the problem through and be accurate ensure you always supply fully working SQL syntax.

SQL Statments should be wrapped in <codestart type="sql"> and </codeend> tags.

Example output:
<codestart type="sql">SELECT * FROM table_name;</codeend>
<codestart type="sql">SELECT column_name FROM table_name WHERE column_name = 'value';</codeend><|end|><|user|>who is the reader on the download/cd format of the title written by author lidster, joseph joseph lidster? 

SQL Table Create Statement:
CREATE TABLE table_20174050_23 (reader VARCHAR, format VARCHAR, author VARCHAR)<|end|><|assistant|><codestart type="sql">SELECT reader FROM table_20174050_23 WHERE format = "Download/CD" AND author = "Lidster, Joseph Joseph Lidster"</codeend><|end|>