Question: How many tracks have an unformatted capacity per side of 2000kb?
SQL: SELECT COUNT("Tracks") FROM "2-18428401-4" WHERE "Unformatted capacity per side" = '2000kb';

Question: What is the unformatted capacity per side if the size is 8in?
SQL: SELECT "Unformatted capacity per side" FROM "2-18428401-4" WHERE "Size" = '8in';

Question: How many tracks have a single density?
SQL: SELECT COUNT("Tracks") FROM "2-18428401-4" WHERE "Density" = 'single';