Barriers and journaling filesystems

> Whether the cards in question used SLC or MLC I don't know.  The pesky thing about them is
that vendors hardly ever publish information at all.


Ya. There is only a handful of people that actually make flash media. Maybe four companies in
total, I forget. 

Everybody that sells that flash media to end users uses a hodgepodge of different sources for
different products. Cheaper folks will mix in different flashes for different  production runs
on the same product... We ran into this problem with Kingston shipping devices that had any
sizes from 470megs on up for their 512 meg products.

So I'd stay far away from vendors that don't publish details about their products for anything
serious.