I personally wouldn't bother with them, especially for that price:
People have reported problems with them, not surprisingly, since CMC also makes KHypermedia, which are the lowest ranked DVD-Rs out there (see reports at dvdrhelp.com's DVD media section).
You can find better deals on Maxell (5 packs for $10 AR on TWO occasions recently) and Fuji (not current; got 40 for $80 inc tax, shipped free; NO rebate required) and MUCH better deals on Verbatim (15 packs) AR.
All of which are better quality than Imation.
Hope that helps...
Plextor PX-716A TLA0304
Plextor PX-716A same TLA
LiteOn 52246S 52X CD-RW
LiteOn 52246S (another)
LiteOn 52327S 52X CD-RW
TDK 40X USB 2.0 CD-RW
TEAC CD-W540E 40X CD-RW