Instruct: Classify Amazon reviews into positive or negative sentiment
Query: These are Version 1.2 -- Incompatible with some new hardwar

My JVC DVD recorder was just introduced this year (2004). It requires version 1.1. There are no firmware upgrades.These disks are version 1.2 and are incompatible. There is a tiny, unreadable disclaimer on the cakebox label. It doesn't give the version, but seems to warn of possible hardware damage.And that is correct, some recorders will be damaged by trying to recognize these disks.As the -R/RW forum rushed to the market with faster-burning disks they hoped would be competitive against the +R folks, they've simply screwed everything up. Now you can hardly buy the -R disks you need. Meanwhile people that bought -r hardware have been left high and dry. Smart thinking.