If you are going to buy Verbatim in a local store, look for AZO on the label. Avoid the "Life Series" Verbatim disks.
In my area it is hard to find JVC disks locally. If I wanted to buy Taiyo Yuden mid codes (found in the JVC disks), I'd buy from online shops like rima.com or supermediastore.com. And if I were going to the trouble to order online, I'd get the 8x +R Taiyo Yuden disks.