I got that a lot as well. started with my old cd/cd-r drive (thought it was 
blown). howeverm replacing with a new emprex DVD/R, CD/r didn't solve the 
problem. it works ok in windows on the same box, but for some reason, linux 
(mandrake 9.1) seems to bitch about it.

I am beginning to think its an OS/software related issue. did you recently 
upgrade your OS?

Mage

On Saturday 31 January 2004 02:00 pm, Vaughn Treude wrote:
> Symptoms:  The drive mounts OK, but when I try to "ls" or "cd" it, the
> message is "bash: cd: /mnt/cdrom: Input/output error"  I've also noticed
> that in dmesg there are a number of CD-failure related messages, the most
> notable being:
>
> hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
> hdc: packet command error: error=0x54
> hdc: command error: status=0x51 { DriveReady SeekComplete Error }
> hdc: command error: error=0x54
> end_request: I/O error, dev 16:00 (hdc), sector 64
> isofs_read_super: bread failed, dev=16:00, iso_blknum=16, block=32
> cdrom: open failed.
>
> And then that last one repeats a bunch of time.  I've tried to clean it I
> can't tell if the drive is actually trying to spin the cleaning disk.
hmmmmmmmm

>
> Another interesting symptom:  when I try to unmount the CD, it says:
> umount: it seems /mnt/cdrom is mounted multiple times
haven't gotten this one yet.

I am going to try both drives in another box. it could be a bad secondary port 
(I hope not!).

my suggestion, don't toss the drive just yet.
have it tested in another box.

Mage