Why is MP3 Video/Player not showing up on my desktop?

Can you reboot and login without the device attached and run:

lsusb;

can you then attach the device and power it on then run:

echo; dmesg | tail -n 15; echo; mount; echo; sudo fdisk -l

Copy the whole output and paste here as an update

Thanks

melinda@melinda-desktop:~$ lsusb;
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 046d:09a4 Logitech, Inc. QuickCam E 3500
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
melinda@melinda-desktop:~$ echo; dmesg | tail -n 15; echo; mount; echo; sudo fdisk -l

[ 9473.593376] usb-storage: waiting for device to settle before scanning
[ 9478.592742] usb-storage: device scan complete
[ 9478.593552] scsi 7:0:0:0: Direct-Access Audio Player PQ: 0 ANSI: 0 CCS
[ 9478.594277] scsi 7:0:0:1: Direct-Access SD CARD PQ: 0 ANSI: 0 CCS
[ 9478.602909] sd 7:0:0:0: Attached scsi generic sg2 type 0
[ 9478.605796] sd 7:0:0:1: Attached scsi generic sg3 type 0
[ 9478.609153] sd 7:0:0:0: [sdb] 8186880 512-byte logical blocks: (4.19 GB/3.90 GiB)
[ 9478.610219] sd 7:0:0:0: [sdb] Write Protect is off
[ 9478.610229] sd 7:0:0:0: [sdb] Mode Sense: 3b 00 00 00
[ 9478.610235] sd 7:0:0:0: [sdb] Assuming drive cache: write through
[ 9478.629703] sd 7:0:0:0: [sdb] Assuming drive cache: write through
[ 9478.629722] sdb: sdb1
[ 9478.634791] sd 7:0:0:1: [sdc] Attached SCSI removable disk
[ 9478.645315] sd 7:0:0:0: [sdb] Assuming drive cache: write through
[ 9478.645328] sd 7:0:0:0: [sdb] Attached SCSI removable disk

/dev/sda1 on / type ext3 (rw,relatime,errors=remount-ro)
proc on /proc type proc (rw)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /dev type devtmpfs (rw,mode=0755)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/melinda/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=melinda)

Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x000e5ce6

   Device Boot Start End Blocks Id System
/dev/sda1 * 1 9402 75521533+ 83 Linux
/dev/sda2 9403 9729 2626627+ 5 Extended
/dev/sda5 9403 9729 2626596 82 Linux swap / Solaris

Disk /dev/sdb: 4191 MB, 4191682560 bytes
8 heads, 32 sectors/track, 31980 cylinders
Units = cylinders of 256 * 512 = 131072 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x221e5780

   Device Boot Start End Blocks Id System
/dev/sdb1 * 1 31980 4093424 b W95 FAT32
melinda@melinda-desktop:~$

ok the partition to mount is /dev/sdb1 and is FAT32 formatted.

You can mount it with:

sudo mkdir /media/usb; sudo mount -t vfat /media/usb; sudo mount /dev/sdb1 -o uid=1000,rw,user

You can now access the files from /media/usb like a normal folder in your file system. Strange it's not automounting but this will make it mount. If you get any error messages then paste them here.

melinda@melinda-desktop:~$ sudo mkdir /media/usb; sudo mount -t vfat /media/usb; sudo mount
[sudo] password for melinda:
mkdir: cannot create directory `/media/usb': File exists
Usage: mount -V : print version
       mount -h : print this help
       mount : list mounted filesystems
       mount -l : idem, including volume labels
So far the informational part. Next the mounting.
The command is `mount [-t fstype] something somewhere'.
Details found in /etc/fstab may be omitted.
       mount -a [-t|-O] ... : mount all stuff from /etc/fstab
       mount device : mount device at the known place
       mount directory : mount known device here
       mount -t type dev dir : ordinary mount command
Note that one does not really mount a device, one mounts
a filesystem (of the given type) found on the device.
One can also mount an already visible directory tree elsewhere:
       mount --bind olddir newdir
or move a subtree:
       mount --move olddir newdir
One can change the type of mount containing the directory dir:
       mount --make-shared dir
       mount --make-slave dir
       mount --make-private dir
       mount --make-unbindable dir
One can change the type of all the mounts in a mount subtree
containing the directory dir:
       mount --make-rshared dir
       mount --make-rslave dir
       mount --make-rprivate dir
       mount --make-runbindable dir
A device can be given by name, say /dev/hda1 or /dev/cdrom,
or by label, using -L label or by uuid, using -U uuid .
Other options: [-nfFrsvw] [-o options] [-p passwdfd].
For many more details, say man 8 mount .
/dev/sda1 on / type ext3 (rw,relatime,errors=remount-ro)
proc on /proc type proc (rw)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /dev type devtmpfs (rw,mode=0755)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/melinda/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=melinda)
melinda@melinda-desktop:~$

Still can't see anything on my desktop but when I go to Places, click on computer, I see a icon that's says ALi Corp. SD CARD try to open but it doesn't open.

melinda@melinda-desktop:~$ sudo mount -t vfat /dev/sdb1 /media/usb -o uid=1000,rw,use
mount: /dev/sdb1 already mounted or /media/usb busy
mount: according to mtab, /dev/sdb1 is already mounted on /media/usb
melinda@melinda-desktop:~$

It's on my desktop now showning up as a usb. Thanks for help.

Thanks actionparsnip, that solved my question.