Having a problem with Plextor 708A drive. Have had it for 1.5 years and always worked fine. Using DVD Xcopy Xpress to back up DVD's. Use to take 45 min to read and 30 min to write. Now it takes 90 min to read and 95 min to write. Same thing happened when I used Roxio to burn a .iso file. I noticed that the write hardware buffer used to be constant. Now it goes up ny increments and then back to zero. Burn speed says it is 0.9 X. Any help would be great.
