Callebaut callets vs. block? So I know that one should never substitute chocolate chips for chocolate in a recipe, but I'm new to the game and don't really know what the deal with these callets is. Are they essentially the same as chocolate chips, or can I buy a massive bag of them and use interchangeable with chocolate chips as well as bar chocolate?

Sorry if this is a rookie question.
Low quality chocolate chips often have additives in them that help them keep shape and shelf life, that's why they're not recommended.  Callebaut callets are pure 100% chocolate according to Callebaut.  I'd use them anywhere for bar or chips with great results.  They might not come out of the oven looking exactly like a traditional chocolate chip cookie (for example) but they should taste fantastic!