Nemůže to být bug v kernelu? Na Wikipedii jsem si všiml tohoto:
Linux 2.6.X (Read+write) 1.02, 1.50, 2.0x (write supported on HDD, DVD-RAM, DVD+RW and CD-RW from 2.6.10 onward, earlier versions support less media), 2.50 (read, via patch) NOTE: before 2.6.17, there's a bug in writing files bigger than 1GB; between 2.6.17 and 2.6.21 (inclusive), this is disabled, as a workaround; and in 2.6.22 this bug is fixed.