I ordered two spindles. From what I can tell they are the same as the bulk packaged in the red wrapper. Two differences: these are on a spindle and they have a writing surface and a Ridata logo printed on them, otherwise they appear to be the same as the bulk.
No clue why they are a couple of bucks less than the bulk media.
I am almost thry my second spindle of 50 and am about to order another spindle. At the rate these things are dropping in price I am not ordering too many at one time.