I have an Insignia IS-DVD100121 player/recorder which is working perfectly except it would only initialize about 1 in 10 new HP DVD-R 10X discs. Used a disc lens cleaner and removed the cover and wiped the disc lens with a cue-tip with alcohol. Neither solution worked well. Read a suggestion that it may be better to change the discs to 4X and bought a Staples brand which has solved the problem! Fast initialization on every disc!