I don't know whether a generic problem, but my UHD-friendly drive (Asus BW-16D1HT) very often has issues just reading the TOCs of discs. I wondered if this was because my drive was failing so I bought a second one very recently which I was able to flash to make it UHD friendly, but this seems to struggle in the same way. I have of course checked that the discs are clean which they are. But often, inserting a disc, the drive will scan for a very long time before either successfully reading the TOC or just giving up. Sometimes, when it gives up, if I eject the disc and reinsert it, it will then read it surprisingly quickly. Other times, it will struggle in the same way before being successul or giving up again. When it can read the TOC, then the ripping seems to happen without any issues (starts at around 11MB/s) Right now, I'm struggling with Elysium (UK version) with one drive. Tried ejecting and restarting several times, just can't read it. I will try in my second drive once that's available. From my experience, this is occuring with many discs across two different drives, so what's the cause? Are these discs on the limit of quality / precision tolerances? Something with the drives?