what the difference between single format and dual ?

[stedyedy]

http://www.liteonit.com/ODD/english/...-p-drw4440.htm is this dvdr dual format is dual format better than single format and why ?

[roadworker]

Yes,the drive is a dual format......dual format drives are not necessarely better than single format drives,it's just that they cover both dvd standards....doesn't matter what dvd-format will dominate,you will be able to burn..
They are a safe buy