My canon camcorder model dc10 cannot initialize any of the discs. I went to test out the sony handyman mini dvd-r and found no problem. I'm not certain whether it's the dvd-rw format that my camcorder does not recognize or whether this pack of memorex dvd-rw is incompatible with my canon. In either case, I can't return the disc to get any reasonable refund since it has been opened. The 10 pack gets a 1 star for cheap price although useless in my case.