Hi guys, I got a mysterious thing going on here. I'm about to copy my Rollercoaster2 cd to an ISO using dd. I open a terminal and typed umount /dev/cdrom and then dd if=/dev/cdrom of=/tmp/roller2.iso. I get following output:
dd: reading `/dev/cdrom': Input/output error
1284832+0 records in
1284832+0 records out
657833984 bytes (658 MB) copied, 446.532 s, 1.5 MB/s

So, what's the Input/Output error? And when I mount the image I got a empty disk with 0 size, still the image is 658Mb???

Anyone familiar with dd?
/Thanks