Memorex 32023288 DVD 16x External Drive Info Please?

Hi all,

I am very interested in the following external Drive:

Memorex 32023288 DVD Double-Layer Recorder 16x16 Dual Format External Drive

But I am i little confuse…

-It is true, that this is based on the NEC 3500A?

In the drive review at :

They mentioned that A few features that are missing from this burner are the ability to read the following types of disks: DVD-RAM, DVD-R DL, CD-ROM XA, CD-TEXT, CD+, CD-I and CD-Extra…

Since I a aware that Wesociety have this Memorex dvd external drive,
I will appreciatte if he could tell me how compared with BenQ or liteon?

Thanks for help!