I receive the following error when clicking the sync button in gtkpod: Could not open file "/mnt/ipod/iPod_Control/iTunes/iTunesDB" for writing.

dmesg | tail produces the following:

ATAPI device hdc:
Error: Not ready -- (Sense key=0x02)
(reserved error code) -- (asc=0x30, ascq=0x02)
The failed "Read Subchannel" packet command was:
"42 02 40 01 00 00 00 00 10 00 00 00 00 00 00 00 "
ATAPI device hdc:
Error: Not ready -- (Sense key=0x02)
(reserved error code) -- (asc=0x30, ascq=0x02)
The failed "Read Subchannel" packet command was:
"42 02 40 01 00 00 00 00 10 00 00 00 00 00 00 00 "

Any thoughts on what I can do to fix this?