If your converted 16-Bit files sound fine on your hdd, the result should be the same after burning since the recorder doesn't change any data. Try to rip your burned copies to your hdd again and compare the resulting waves. The best tool for this will be EAC. There, select "Tools --> Compare Wavs..." or just press ALT+C.
Besides that, the used media is totally irrelevant, as long it isn't the worst availlable (the same is for the writer). There are aren't any differences in quality but in reliability only.