Clone PC Intel 2.8ghz CPU 1 gig mem Western Digital 120gig HD. 92gig available DVD Drive: Memorex DVD Double Layer 16X Using Memorex DVD-R (single layer) disks Burning at 4x. Have never tried higher because of symptoms below. Task Manager on Performance Tab (System Idle) Physical Memory (K) Total: 1048044 Available: 717680 System Cache: 672640 Processes: 53 CPU Usage: 0 to 1% Commit Charge: 250M/2461M Disc Info under BURN Compilation It says BOOK TYPE. What does that mean? [bold]HERE ARE MY SYMPTOMS[/bold] Used Read Buffer: fills to 100% and after about 3 to 5% on the completed line the used read buffer starts to diminish until it gets to zero then fills back again to 100%. Again after 3 to 5% more on the completed line the used read buffer does the same thing. This process continues until the DVD is finished. The time it takes to finish writing is double that of the time it states it will take. Buffer Lever for recorder: Starts at 100% and as the used read buffer falls to zero and starts fill again the buffer level for the recorder falls between 35 and 55% then fills back to 100%. (If I burn a DVD-RW at 1X the used read buffer stays at 100% as well as the Buffer Level for recorder). The DVD is written correctly. Plays in computer as well as desktop player. Can anyone give me a clue as to what is wrong or how to fix this problem. Thanks in advance.