MicroSD Card performance variance on XO-1.5

[Chris Ball]

Hi,

   > This probably explains the scattered results of testing Record
   > audio/video sync -- with lots of 'works for me' vs "definitely
   > doesn't work". The slower SD cards are significantly slower.

It did explain some of the first Record problems, but then we switched
to recording into /tmp (on tmpfs) to isolate that variable.  (There
were still further problems, so SD speed isn't a sole explanation.)

- Chris.
-- 
Chris Ball   <cjb at laptop.org>
One Laptop Per Child