How does this solution compare to the FileLogger library?
http://code.google.com/p/arduino-filelogger/
One difference is that with FileLogger you have to create the file, but you don't have to pre-allocate the size.
I'm curious as to the difference in data bandwidth and code space.
NOTE: They both use 'mmc' sub-files which are not the same, so if you want to try both be aware of this.