$ growisofs -Z /dev/hdc rep-wtc.img Executing 'mkisofs rep-wtc.img | builtin_dd of=/dev/hdc obs=32k seek=0' I: -input-charset not specified, using ISO-8859-1 (detected in locale settings) mkisofs: Value too large for defined data type. File rep-wtc.img is too large - ignoring Total translation table size: 0 Total rockridge attributes bytes: 0 Total directory bytes: 0 Path table size(bytes): 10 Max brk space used 0 174 extents written (0 MB) /dev/hdc: "Current Write Speed" is 8.2x1352KBps. builtin_dd: 176*2KB out @ average 0.0x1352KBps /dev/hdc: flushing cache /dev/hdc: updating RMA /dev/hdc: closing session