Nec 3540a has automic bitsetting?

nec 3540a has automatic bitsetting on dvdr +dl like pioneer 109 ?

Hi, welcome to the forum :slight_smile:

This info is (among many others) in Jan70’s review of the drive.
Here is a direct link to the 3540 feature’s page of this review:

Please read around before asking questions when answers are so easy to find…

Yes it has bitsetting for DVD+DL