#2. "RE: Do any of you Lightroom 4 users convert your files to DNG and why?" In response to In response to 1
It is something I do about once a year as another extra way of backing up all my pictures and edits. So I export to DNG with the orignal NEF included within the DNG file. It adds a little on the file size but for my backup strategy it makes sense. And once the complete DNG collection is generated I burn it to multiple Blu-Ray disks.