Can't burn a dvd

I have a Dell Inspiron 4000. i just updated the CD rom module to a DVD-RW module. it reads a home made data dvd. but i can’t burn a new dvd.
when i insert a blank dvd it recognizes the dvd as a CD. the “write these file to CD” option becomes unavailable. is there something i’m missing? is there anything add’l. i need to do?

Where did you get the dvd module? They only made dvd-rom for this model, not a burner. This is a very old underpowered laptop to even try burning dvds.

Use a proper burning app.