Silver 1x-2x Pro-Grade DVD-R 4.7GB, in jewel cases

2X SPEED NOTE -- 2X burning is possible only with the latest firmware from Pioneer or your 3rd party manufacturer such as Apple or Compaq. Newer firmware versions enable your drive to recognize more types and brands of discs as being 2X capable.

COMPATIBILITY NOTES - These discs have been tested and certified to work well with DVD-R "general" type DVD burners, and can be played on most DVD players. Most problems with disc compatibility are actually caused by outdated drive firmware. Firmware controls how your drive works with different brands of discs. Recent firmware upgrades are now available for most DVD burner drives that tremedously improve the drives' ability to recognize and burn more brands of DVD discs properly, so those discs will play without errors on most DVD players. You should check frequently to see if new upgrades are available, because new releases are now being released every week. Download FREE firmware upgrades for DVD burners at CDRInfo.com or Firmware-Flash.com, or go to your manufacturer's support pages.