For its "M" Club members only, mwave.com offers this Set of 2 Optical Quantum 4x 25GB Blu-ray BD-R Media Disc 10-Packs
(a total of 20), model no. OQBDR04LT-10, for $19.99
with free shipping
. ("M" Club membership is free; click here
to sign up.) At $1 per disc, it's the lowest total price we could find for this quantity by $4, although we saw a single one of these 10-packs for $8 shipped two weeks ago, since expired.