What is "good?" Shop for Tech has Sonic 2X DVD-R for 17 cents apiece all the time with shipping "usually free". I don't need to burn a X8 disk at 12 speed to think something is good when my use is on a set top recorder. (Liteon 5005 and 5045). These Sonics fail about 50% of the time if you try multiple burns--ie, take the disk out of the machine and try to finish up the disk a few days later. If the disk is left in until full and finalized I have had 100% success (on @ 200 disks so far).
On same machines, I have had Fuji, Maxell, and TDK fail "while burning!" (Actually only once per brand but none so far on Sonic!) That is a bummer. Why pay even one cent more for OptiDisk when Sonic is a "proven" winner within its limitations? I have some TY's in reserve for "can't fail" situations--which aren't that many.
I'll do faster disks when I find a tv tuner card for the computer that can match the quality of the liteon images AND that allows burning a "fully complying DVD disk"==fully complying to whatever liteon uses so the machines are all interoperable.
Instead of "good vs bad" the desired approach should be hard data==ie, the actual failure rate of the disks--as is done in the excellent reviews herein. =========IMHO. //// bobbo.