209DBK: BD-R DL-burner with pure black front bezel
209EBK: BD-R TL and QL-burner to burn 100-128GB on these media; never used it, to expensive and rare. The Retail-version have also a Pioneer and BD XL logo on the bezel
S09XLT: Like the EBK with stylish front bezel
The 209, no matter which one, is the best overall-writer for optical media. You can ha´ve with some media better results with a LG or Samsung, but the 209 handles a wide range, even very old media, better than actual DVD-writers.
And I mentioned it earlier the 209 is the only writer I found in my shelf which burn a rare, cheap and old CD-R-media without C2-errors, and this with 24x-speed. Tried some other DVD-writers and the results were really bad
LG GH22NS40 @16x
I guess no one have some of this media and it´s not important, but the 209 impressed me a lot in the past