as i've begun to use a bit more the mmc memory of my n770 (now i use it as music player) i get corrupted mp3 files that media player can't play. i've noticed that the vfat fs gets corrupted and has plenty bad blocks: # mkdosfs -c -v /dev/sdb1 mkdosfs 2.11 (12 Mar 2005) /dev/sdb1 has 32 heads and 32 sectors per track, logical sector size is 512, using 0xf8 media descriptor, with 1002496 sectors; file system has 2 16-bit FATs and 16 sectors per cluster. FAT size is 245 sectors, and provides 62623 clusters. Root directory contains 512 slots. Volume ID is 45b77a5a, no volume label. Searching for bad blocks 4064... 8288... 12512... 16736... 20960... 25184... 29408... 33632... 37856... 42080... 46304... 50528... 54752... 58976... 63200... 67424... 71648... 75872... 80096... 84320... 88544... 92768... 96992... 101216... 105440... 109664... 113888... 118112... 122336... 126560... 130784... 135008... 139232... 143456... 147680... 151904... 156128... 160352... 164576... 168800... 173024... 177248... 181472... 185696... 189920... 194144... 198368... 202592... 206816... 211040... 215264... 219488... 223712... 227936... 232160... 236384... 240608... 244832... 249056... 253280... 257504... 261728... 265952... 270176... 274400... 278624... 282848... 286944... 291168... 295392... 299488... 303712... 307920... 312032... 316240... 320224... 324320... 328416... 332512... 336608... 340704... 344800... 348896... 353120... 357344... 361568... 365792... 370016... 374240... 378464... 382688... 386912... 391136... 395360... 399584... 403808... 408032... 412256... 416480... 420704... 424928... 429152... 433376... 437600... 441824... 446048... 450272... 454496... 458720... 462944... 467168... 471392... 475616... 479840... 484064... 488288... 492512... 496736... 500960... is this behaviour usual with such low usage ?