the Maxell 25pk spindle is most likely RICOHJPNR01.
I bought a pack of these couple of weeks ago from office depot.
They were on sale for 4.99 (no rebate!).
The packaging is the same and there is PN: 050619-00/SH on the shrinkwrap.
Also, i have bought some Fuji 25 pk made in Taiwan that are RICOHJPNR01.
These types work very good with my BTC IDE1008 writer.