There is another thread like this, regarding high degradation on anything RitekG05. I've reburned about 35, both of the Ritek Ridata DVD-R 8x and Maxell RitekG05. Both are garbage, although at least with the Maxell you'll have a full lifetime warranty on them (but then, you'd have to try to convince them to replace them with genuine Maxell, either MXL RG03 or Maxell002 mids).
Basically, my Ritekg05s were degrading just after 2 weeks to 2 months (although stored properly, in a cool place, out of sunlight, etc.), with a minimum of 2x the original PIF error totals, to as high as 4x and in case, 7x the original PIF total! Really, if you want peace of mind, don't record any data to any RitekG05...or for my money, nothing at all that's Ritek.