Do you test the quality of your burnt DVDs?

I use Nero CD/DVD Speed to test each disc after I burn it. If the graph is bad, I consider it a bad burn even if there were no read errors.

After all it really doesn't matter much is the data is 100% readable if a movie I am watching is going to stutter because it can't read from the DVD fast enough.

Anyway I would like to know how many people test the quality of their burnt DVDs and what programs they use.

I bought a batch of cheap Optorite DVD-R's and they all passed sfv checks (data 100% intanct), but I would still have playback trouble even on my PC.

So I graphed their transfer rate and discovered all the bad discs had downward spikes in the transfer rate.

I can also save the graph and then compare it a year latter and see how my media is aging.

I also noticed that error detection/correction make creating SFV files redundant. I would get an "uncorrectable" error from every disc which failed an SFV check.

I still create SFVs when archiving files such as family photos, backups of personal documents ect. But for movie's I just verify my burns with transfer rate graph.