My first suggestion would be to look for any firmware updates that might improve the write strategy your dvd burner is using on the media you are using.
My 2nd suggestion would be to try different media.
A newer/different burner might help, if you get one that dynamically adjusts write strategies for newer media and/or has frequent firmware updates to improve performance with newer media.
- use a burn speed mid-way in the range of speed for your burner/media combination. 16x media and 16x burner - try 8x.
- go to the web-site for your burner and find what media brand/speed is recommended for your burner and try some of that.
- try some well respected brand (manufacturer) media - maybe Verbatim or TY. Be careful of brands like Memorex, as they could be anything inside. I’ve had good success with TDK media (actually CMC media) in spite of some folks thinking poorly of it. But in all honesty - my Benq 1650/55 burners seem to do well with most anything.
- if you decide to replace the burner, go with a well respected burner and one that offers software to handle media not in the firmware. I’ve done well with Benq and Lite-On.
btw - my newest Sony dvd player (a 5 disc upconverting player) will play anything I throw in it - so don’t assume you have to use a non-brand name player to have success. But some media brands/player brands don’t work well together. My daughter’s JVC player is unbelievably finicky - yet my JVC combo player (dvd and vhs) seems happy with most anything.