I have been having the same problems as Oak in [thread=116174]this thread[/thread]. I also use DVD shrink and nero 6 (all the latest versions).
I started out using princos with a hit and miss but most good result, then diferent princos, then shintaro and have had nothing but trouble. i then tried TDK after they were mentioned here as a reasonable brand. still no luck. i get the corrupt jumpy/blocky usually towards the end of the discs, but sometimes at the start of the moves and other random spots. i burn them at x4 and x2 but no difference. i even reformatted and started from scratch.
please please please help, my bin is getting awfully full of dud DVDs
I have attached a kprobe thingy from a dodgey TDK burn