Question

Can dvds replace textbooks?

Answer 1

They both have there own advantages and disadvantages:-

Advantages of DVDs-
→They are cheaper to buy
→They are small and size and weight
→They are easy to carry and handle

Advantages of books-
→They have resale values.
→They need no devices and batteries to get start
→They have their own traditional feel 

Answer 2

never
but it does not mean they are not helpful
they are certainly helpful but books are more than that
because when u read a book u gain a lot of knowledge
when u read a particular topic you tend to read the other.
but in case of dvds u can gain infos only on a particular topic.

also when u read a book,

⇒you learn to be polite
⇒you dont involve in unwanted affairs

there is no friend as loyal as a  book