Can a Dual Layer DVD drive write a Single layer DVD r/CD r

[doddsyuk]

Really confused, i accidently deleted my software to burn cds/dvds on my dell laptop, Dell inspiron 1300, it was the Sonic software??? CONFUSED*  anyway i want to buy a dual layer DVD writer so i can burn my films onto 8.4GB discs however i may not always need 8.4GB so would the dual layer writer still write a normal 4.7GB disc. i then want to play this on a region free dvd player. this would work right??? thanks

[contrex]

Dual layer writers will write single layer disks.


 

[doddsyuk]

thanks a lot