5 great discs as long as you don't use Sony CD architect!goldenlion | 05/09/2010 | See all goldenlion's reviews (1)I would have had the same opinion as the first reviewer on here until I discovered the reason.It is pretty bizarre, but my CD burning software trashes the CD if you click on MIcrosoft Explorer during the process. It's probably an incompatibility between CD architect 5.2 and Windows 7. Since I discovered that the discs have all been great. They are the only discs that seem to be compatible with the Canon ip4700. Please note that the description on this site is wrong. They are not 80 min. They are the new 70 min full face printable discs. At least that's what I got last time I ordered some, which is what I wanted.