Why cant i use guaranteed brand disks next to my dvd burner?

Why cant i use guaranteed brand disks next to my dvd burner?

Are you sure it's a brand problem or is it a DVD + vs - article. Most newer writers will do both plus and minus R disks, but some of the older ones will single do one or the other. Make sure you're using whichever one your writer is compatible with.
It depends if your burner is single or dual covering.
When DVD's were invented, Sony patented the process for making them. All other companies use process close

to what Sony invented. So respectively DVD brand is just a short time different then the others. Some of those process work better near certain brands of burners next others. Check the documentation for your burner, and it will tell you which brands work the best near it.