Well, I went sniffing around the DVD that came with my PB superdrive, and on it is an icon set for DVD-RAM discs.
To find it yourself, do a finder search on the DVD Restore disc with DVD as the file name, and then add the criteria of Visibility is "off"
Actually, there's a lot of stuff on there worth seeing, but that caught my eye as I scrolle dthrough the thousands of files...
My only question is, was there finder support of DVD-RAM for other drives (ie external) before?
Jeff