I would adjust my Copy-Rip practices to improve efficiency (and, yes, speed) and perhaps quality, too. I'd make sure my notebook's C: Drive had a large percentage of hard-drive space available (at least 40%) and that I'd do Disk Cleanups (getting rid of temp files and The Trashcan's contents), then a Disk Defrag. After that Restart, then I'd copy DVDs to my hard-drive, burn copies and IF I wanted to preserve a spare copy of those DVD-Files, then move (ie, copy then delete) them to my External.
THEN, after that process was finished, I'd do another Disk Cleanup/Disk Defrag/Restart and my computer should be left in Fastest Operating Mode.
As far as BluRay vs DVD, our forums do discuss some 'quality shifts' between a DVD Manufacturer and its BluRay successor drive. I'll let the Samsung experts comment on that, but I don't think I've seen a frequent discussion that condemns Samsung BluRays for their DVD burning.
I think I've seen comments like, "Asus BluRays aren't as good as the Asus DVD burners" but that's more of an overall quality issue, and not a "DVD burning is bad but BluRay burning is good".
If there's anything 'if-fy' about BluRay Burning, it's because the fineness of the BluRay laser is much greater than a DVD's laser, and the disk quality is necessarily heightened and thus subject to greater errors. More data on the same 'space' - size of the optical disk - must mean an almost exponential demand for higher quality media AND the laser mechanics.
I hope others can jump in here for differing viewpoints, but I made the move to include SOME BluRay burners for testing purposes, not for wholesale use. (I still burn DVDs for videos because that's the media for which MY favorite movies are sold.) And my BluRay drives burn DVDs as well as my DVD burners do, so I'm happy enough. (I use Pioneer 207s and 208s - the 208-series has an OEM version for the drive "208DBK" for example, and the retail package is listed as a "2208", but it includes BluRay-playing software - which can be very handy. (There are discussions of installing these 'internal' drives into external cases, by the way, if you're interested in that option.)
Your choice in Samsung is considered good-or-better and if that's readily available, have at it - do some tests, see what you think - and if it doesn't perform like you expect, there are sadly fewer and fewer choices available as this segment of the manufactured products dwindles. LG - a brand I'd never considered as a DVD Drive - has a good reputation here for its BluRay burners.