I post both a quality scan of a single layer DVD, and a dual layer dvd.
Single layer media used: Verbatim MCC 03 RG20 (average burn speed 12x)
Dual Layer media used: Ritek-S04-66 burned at 4x (I chose max, the drive never exceeded this speed)
Both drives are encased in external enclosures, and attached via a USB hub.
I am aware this is a half assed attempt, but its all I got. If anybody wants me to do a specific test, please name it.
I will keep testing burns at random for quality, but I'm not impressed, specially not after seeing the quality scans of my 7200. I am planning on giving the 7200 away to a friend and get me a 7240 though.