Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
1. your DVD recorder drive may need cleaning. Particularly if it is in a dusty environment, or if it has ever been the least bit dusty even once, around it.
A drive cleaning kit such as this one from Walmart (but many other stores sell these) could be obtained and run on it. (Warning: trying to clean it yourself by hand will most likely result in ruining it completely. It is kind of delicate.)
2. you may have a problem if you are using cheap DVD disc blanks. Sometimes a number of them in a given 'production run' of discs, will be sub-normal and refuse to format, refuse to finalize, etc.
Try several more. Consider whether you bought the cheapest available, or if you have perhaps switched to another stack lately, another box or another package of blanks. If so, those may be too subnormal in quality for your DVD recorder to tolerate or use.
3. your DVD recorder may have a problem aside from the first two problems, also. If so, it may need a repair technician to deal with it, unfortunately, if the first two problems have been thoroughly covered without any improvement in results.
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