i just copied a cd with X-CD-Roast, and then i tried to copy another one. However, whenever I put a cd in the drive I read from, it waits a while and ejects. When i tried to unmount the cdrom, i got "device is busy". This is from my dmesg:
hdb: tray open
end_request: I/O error, dev hdb, sector 0
Buffer I/O error on device hdb, logical block 0
hdb: tray open
end_request: I/O error, dev hdb, sector 4
Buffer I/O error on device hdb, logical block 1
hdb: tray open
end_request: I/O error, dev hdb, sector 8
Buffer I/O error on device hdb, logical block 2
hdb: tray open
end_request: I/O error, dev hdb, sector 12
Buffer I/O error on device hdb, logical block 3
hdb: tray open
end_request: I/O error, dev hdb, sector 16
Buffer I/O error on device hdb, logical block 4
hdb: tray open
end_request: I/O error, dev hdb, sector 20
Buffer I/O error on device hdb, logical block 5
hdb: tray open
end_request: I/O error, dev hdb, sector 24
Buffer I/O error on device hdb, logical block 6
hdb: tray open
end_request: I/O error, dev hdb, sector 28
Buffer I/O error on device hdb, logical block 7
hdb: tray open
end_request: I/O error, dev hdb, sector 32
Buffer I/O error on device hdb, logical block 8
hdb: tray open
end_request: I/O error, dev hdb, sector 36
Buffer I/O error on device hdb, logical block 9
hdb: tray open
end_request: I/O error, dev hdb, sector 40
Buffer I/O error on device hdb, logical block 10
hdb: tray open
end_request: I/O error, dev hdb, sector 44
Buffer I/O error on device hdb, logical block 11
hdb: tray open
end_request: I/O error, dev hdb, sector 48
Buffer I/O error on device hdb, logical block 12
hdb: tray open
end_request: I/O error, dev hdb, sector 52
Buffer I/O error on device hdb, logical block 13
hdb: tray open
end_request: I/O error, dev hdb, sector 56
Buffer I/O error on device hdb, logical block 14
hdb: tray open
end_request: I/O error, dev hdb, sector 60
Buffer I/O error on device hdb, logical block 15
hdb: tray open
end_request: I/O error, dev hdb, sector 64
Buffer I/O error on device hdb, logical block 16
hdb: tray open
end_request: I/O error, dev hdb, sector 68
Buffer I/O error on device hdb, logical block 17
hdb: tray open
end_request: I/O error, dev hdb, sector 72
Buffer I/O error on device hdb, logical block 18
hdb: tray open
end_request: I/O error, dev hdb, sector 76
Buffer I/O error on device hdb, logical block 19
hdb: tray open
end_request: I/O error, dev hdb, sector 80
Buffer I/O error on device hdb, logical block 20
hdb: tray open
end_request: I/O error, dev hdb, sector 84
Buffer I/O error on device hdb, logical block 21
hdb: tray open
end_request: I/O error, dev hdb, sector 88
Buffer I/O error on device hdb, logical block 22
hdb: tray open
end_request: I/O error, dev hdb, sector 92
Buffer I/O error on device hdb, logical block 23
hdb: tray open
end_request: I/O error, dev hdb, sector 96
Buffer I/O error on device hdb, logical block 24
hdb: tray open
end_request: I/O error, dev hdb, sector 100
Buffer I/O error on device hdb, logical block 25
hdb: tray open
end_request: I/O error, dev hdb, sector 104
Buffer I/O error on device hdb, logical block 26
hdb: tray open
end_request: I/O error, dev hdb, sector 108
Buffer I/O error on device hdb, logical block 27
hdb: tray open
end_request: I/O error, dev hdb, sector 112
Buffer I/O error on device hdb, logical block 28
hdb: tray open
end_request: I/O error, dev hdb, sector 116
Buffer I/O error on device hdb, logical block 29
hdb: tray open
end_request: I/O error, dev hdb, sector 120
Buffer I/O error on device hdb, logical block 30
hdb: tray open
end_request: I/O error, dev hdb, sector 124
Buffer I/O error on device hdb, logical block 31
hdb: tray open
end_request: I/O error, dev hdb, sector 0
Buffer I/O error on device hdb, logical block 0
hdb: tray open
end_request: I/O error, dev hdb, sector 4
Buffer I/O error on device hdb, logical block 1
hdb: tray open
end_request: I/O error, dev hdb, sector 64
Buffer I/O error on device hdb, logical block 16
hdb: tray open
end_request: I/O error, dev hdb, sector 68
Buffer I/O error on device hdb, logical block 17
I copied all of that for emphasis