It is a real pity, how generous projects such as HVD and DVD+RW DL were discontinued.
But I have a question: *iF the DVD+RW DL was actually released (prototypes did actually exist as far as known), would it have 1000 rewrite cycles like normal DVD+RWs? (As far as I know, Sony claims having 2000 rewrite cycles. I can confirm however, that Sony’s DVD+RWs and -RWs, unlike their CD-R’s, have a really excellent quality.).