Sorry, I've personally used about 20,000 Princo media (both CD and DVD) in the past 4 years, and literally, the failure rate is less than half a percent.
In total I've used more than 500,000 blank media (it's part of my line of work to test these medias) and the bottom rung is, in fact, Memorex and the upper-middle range is Princo, with Verbatim at the top range.
PS: Princo have different grades. Lowest grade Princo is about CAD 80 cents for a regular DVD-R, A-grade Princo is about CAD$2.19
Funny about those camcorder. I never had that problem at all. Check the setting and make sure auto-finalize is not set to on.
I bought my Panasonic DVD camcorder for CAD$1200 including taxes from Eastview Electronics and the package also includes a Panasonic camera bag and 5 DVD-RAM. That was in December 2002. I can get the Sony DVD camcorder for CAD$1100 including taxes with a Sony camera bag included too from a different retailer.
Yes the DVD camcorder is more expensive, but also don't forget that they use larger size CCD (up to 25% larger in surface area than those $900 miniDV) which means better colour rendition and low-light absorption.