These two drives are seen by the system (MDK 9.0) but I'm having trouble mounting any of them.

After I make sure they're seen by the system:

Hd= sda
CDRW= sdc0

I try to mount them:

(Hd)
mkdir /storage

and then when I go to /etc/fstab as root and enter the /dev/sda ....
I get an access denied (as root)

What am I doing wrong?

try this as root

mkdir /mnt/storage
mount /dev/sda /mnt/storage

and for cdrw...

mkdir /mnt/cdrw
mount /dev/sdc0 /mnt/cdrw

P.S: welcome to LQ!

I think I've already tried that but I'll try again and let you know how it turns out..

Thanks for your welcome.....

PS. Don't I have to tell Linux that this drive is a Dos partition?

Post your fstab file.
Try this as root.
mount -t vfat /dev/sda1 /mnt/storage
and for the CDRW with a data CD
mount -t iso9660 /dev/scd0 /mnt/cdrw
(The mount points /mnt/storage and /mnt/cdrw must exist before usint the mount command).

Here's what /etc/fstab says:

/dev/hda5 / ext3 noatime 1 1
none /dev/pts devpts mode=0620 0 0
/dev/hda8 /home ext3 noatime 1 2
none /mnt/cdrom supermount dev=/dev/hdc,fs=auto,ro,--,iocharset=iso8859-1,codepage=850 0 0
none /mnt/floppy supermount dev=/dev/fd0,fs=auto,--,iocharset=iso8859-1,sync,codepage=850 0 0
/dev/hda1 /mnt/windows vfat iocharset=iso8859-1,codepage=850 0 0
none /proc proc defaults 0 0
/dev/hda7 /usr ext3 noatime 1 2
/dev/hda6 swap swap defaults 0 0
/dev/sda1 /mnt/camera auto user,iocharset=iso8859-1,kudzu,codepage=850,noauto,exec 0 0

I have already created a directory in /mnt called "storage"

I've tried to copy the same setting than my C drive substituting the hda1 by sda, and I get "permission denied". And, of course I am logged in as root....
Is there anything I'm not doing right?

can you post the output of these commands:

fdisk -l

ls -l /dev | grep cdrom

Your /etc/fstab has an entry for /dev/sda1 which will be mounted on /mnt/camera. Can u see it if u run 'mount'?

Here's what my fdisk -l says:

Disk /dev/scsi/host0/bus0/target0/lun0/disc: 255 heads, 63 sectors, 14946 cylinders
Units = cylinders of 16065 * 512 bytes

Device Boot Start End Blocks Id System
/dev/scsi/host0/bus0/target0/lun0/part1 ? 119512 153402 272218546+ 20 Unknown
Partition 1 does not end on cylinder boundary:
phys=(357, 116, 40) should be (357, 254, 63)
/dev/scsi/host0/bus0/target0/lun0/part2 ? 82801 116350 269488144 6b Unknown
Partition 2 does not end on cylinder boundary:
phys=(269, 101, 57) should be (269, 254, 63)
/dev/scsi/host0/bus0/target0/lun0/part3 ? 33551 120595 699181456 53 OnTrack DM6 Aux3
Partition 3 does not end on cylinder boundary:
phys=(324, 77, 19) should be (324, 254, 63)
/dev/scsi/host0/bus0/target0/lun0/part4 * 86812 86813 10668+ 49 Unknown
Partition 4 does not end on cylinder boundary:
phys=(335, 78, 2) should be (335, 254, 63)

Partition table entries are not in disk order

Disk /dev/ide/host0/bus0/target0/lun0/disc: 255 heads, 63 sectors, 1222 cylinders
Units = cylinders of 16065 * 512 bytes

Device Boot Start End Blocks Id System
/dev/ide/host0/bus0/target0/lun0/part1 * 1 612 4915858+ b Win95 FAT32
/dev/ide/host0/bus0/target0/lun0/part2 613 1222 4899825 5 Extended
/dev/ide/host0/bus0/target0/lun0/part5 613 694 658633+ 83 Linux
/dev/ide/host0/bus0/target0/lun0/part6 695 725 248976 82 Linux swap
/dev/ide/host0/bus0/target0/lun0/part7 726 1018 2353491 83 Linux
/dev/ide/host0/bus0/target0/lun0/part8 1019 1222 1638598+ 83 Linux

Here's ls -l /dev | grep cdrom:

lr-xr-xr-x 1 root root 13 Nov 23 09:53 cdrom -> cdroms/cdrom0
lr-xr-xr-x 1 root root 13 Nov 23 09:53 cdrom0 -> cdroms/cdrom0
drwxr-xr-x 1 root root 0 Dec 31 1969 cdroms/

Thanks...