Perchance do your problematic backup copies play without problems on your computer DVD playing devices using a computer software playback program similar to Power DVD?
Also could you provide the manufacture name and model number of your stand-alone desktop player. Your description statement â€œstandalone player is denon not a cheap playerâ€ provides insufficient information to even hazard a guess as exactly what Denon player you using.
Also please provide the Manufacture ID and Media Code (Example- RitekG05) of the problematic Taiyo Yuden DVD media that you are experiencing your current problem with as requested in my previous posting in this thread. Is DVD media +Plus or â€“Minus DVD media? (Provide Manufacture ID and Media Code)
Also please provide the Model Number and Firmware Version of your â€œsony and lite on drivesâ€. You fail to accurately and fully describe the actual Model Number and Firmware Version of these devices.
You can obtain the Manufacture ID and Media Code of your Taiyo Yuden DVD media by using DVDInfo Pro (http://www.dvdinfopro.com) or similar software utility. You will also be able to determine your Sony And Lite-On drive model number and firmware version by using DVDInfo Pro.
If you are serious in getting to the bottom of your problem you will provide this fundamental information. If you chose not to provide this information it is going to be virtually impossible for Forum members to provide any meaningful assistance.
If you review your two previous postings in this thread the only definite information you have provided is the version numbers of Any DVD and Clone DVD you are using and only after prompting by me to provide this information. You have to realize that Forum member attempting to provide assistance are not sitting in front of your computer but are located thousands of miles away and have no idea of what equipment you actually are using.