Hrm, I've got the same issue as the previous posters (though my drive is instead the LDW-811s). I bought a cake-box of Ridata +Rs from Newegg expecting them to work per usual only to be unpleasantly surprised when they aren't even recognized as existing once inserted.
I've tried using OmniPatcher to add every new media code I could think of (various Ritek and Ricoh 16x ones that were mentioned in Newegg comments), alas, to no avail. I'd try to figure out my non-working discs' exact media code, but I don't have proper access to another drive.
I suspect that the Traxdata discs are of a similar media code, maybe the Ritek-R04s?
I'd appreciate any ideas, thanks fellas.