No. With SD_uFAT_basic I get errors:
[hola.txt] - file info
[hola.txt] - ..error!
[hola.txt] - add text
alskdjflkdsajf.
[hola.txt] - add string
[hola.txt] - ..done
[hola.txt] - file content
[hola.txt] - ..error!
The file hola.txt is there on the card, created with vim, containing 512 spaces.
The libelium SDmicro module is on the ICSP, power jumper set to 3V3 and GND. Digital pins 1-7 are in use by a LCD and a temperature sensor DS18B20, analog 5 by a thermistor.
I made no changes to the code in SD_uFAT_basic.