I need some help, I have a buslink dvd+r burner and i have been burning alot of expensive coasters on my dvd+r (both verbatim and tdk) due to reading errors during burning, (at minimum speed) with the progs: CopytoDvd, RecordNow Max, and Alcohol 120%. Some where when trying to burn ps2 games but i havent beenable to get any DVD movies lately. All I am getting is read errors when burning on DVD+R. when i test burn on DVD+RW i have no problems but then i stick in a dvd+r to make apermanent copy and I get read errors. (I am using dvdShrink to compress the dvd files)

Any tips or hints as to why or what to do?