who is the reader on the download/cd format of the title written by author lidster, joseph joseph lidster? 
CREATE TABLE "torchwood" (
  "title" text,
  "author" text,
  "reader" text,
  "format" text,
  "company" text,
  "release_date" text,
  "notes" text
);
SELECT "reader" FROM "torchwood" WHERE "format"='Download/CD' AND "author"='Lidster, Joseph Joseph Lidster';