UPDATE: Drives work fine, my problem was due to using cdrkit instead of cdrtools in Linux. Anyone using Linux please use cdrtools as cdrkit is not supported and will simply play coaster after coaster when using a 2-ply BD! ORIGINAL: The first one I recorded didn't work when changing layers, I don't know if it was the burner or the disc. I'm afraid of burning the second ones as they are quite expensive to throw away in trials.
Memorex LightScribe CD-R 80 52x, 50-Pack
10 Review
π Smartbuy 700MB/80min CD-R Blank Data Recordable Media Discs - Pack of 100, 52x Speed, White Top
10 Review
Sony 50DMR47SP DVD R 4 7GB Recordable
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Verbatim 4.7GB DataLifePlus DVD-R 50-Disc Spindle: White Inkjet Printable with Hub Printable - 16x Recordable Disc (95079)
10 Review