Recently I have bought a Pioneer BDR-XD07B portable Blu-ray/DVD/CD burner for $40. The blue laser diode's preliminary testing was a a few PS3 discs; this worked in a way, as it "recognized" the PS3 discs - rather than the drive responding as 'No Disc', anyway.

I then got two different brands of 10 - 25GB Blu-ray rewritable discs (BD-RE) and inserted one of each disc to test the blue laser diode. The drive does recognize the discs: one Ritek (Smartbuy) and one CMC Magnetics (Verbatim).

Need a candidate for testing BD-RE burning, and I think it will be the old-stash MST3K movie set I found on TPB /years/ ago. Of course, the 4TB scratch disk and the old homemade DVD/CD sets will be involved.